View source for Montgomery County, Pennsylvania

{{Short description|County in Pennsylvania, United States}}
{{Distinguish|Montgomery, Lycoming County, Pennsylvania}}
{{Use American English|date=June 2025}}
{{Use mdy dates|date=April 2024}}
{{Infobox U.S. county
 | county               = Montgomery County
 | state                = Pennsylvania
 | type                 = [[List of counties in Pennsylvania|County]]
 | ex image             = Montgomery County Courthouse Pennsylvania - Douglas Muth.jpg
 | ex image size        = 
 | ex image cap         = Montgomery County Courthouse in [[Norristown, Pennsylvania|Norristown]], May 2007
 | flag                 = Flag of Montgomery County, Pennsylvania.png
 | seal                 = Coat of arms of Montgomery County, Pennsylvania.png
 | logo                 = 
 | nickname             = Montco<ref name="Montco"/>
 | motto                = 
 | demonym              = 
 | founded date         = September 10
 | founded year         = 1784
 | named for            = [[Richard Montgomery]] or [[Montgomeryshire]]
 | leader_name          = Neil K. Makhija, Chair<br>Jamila H. Winder, Vice Chair<br>Thomas DiBello, Commissioner
 | leader_title         = County Commissioners
 | seat                 = 
 | seat wl              = Norristown
 | largest city wl      = Lower Merion Township
 | city type            = municipality
 | area_total_sq_mi     = 487
 | area_land_sq_mi      = 483
 | area_water_sq_mi     = 4.2
 | area percentage      = 0.9
 | population_as_of     = 2020
 | population_total     = 856553
 | pop_est_as_of        = 2024
 | population_est       = 868742 {{increase}}
 | density_sq_mi        = 1773
 | district             = 1st
 | district2            = 4th
 | district3            = 5th
 | time zone            = Eastern
 | UTC offset           = 
 | DST offset           = 
 | tz note              = 
 | time zone 2          = 
 | UTC offset 2         = 
 | DST offset 2         = 
 | tz note 2            = 
 | website              = {{URL|https://www.montgomerycountypa.gov/|montgomerycountypa.gov}}
 | footnotes            = 
}}
{{maplink|frame=yes|zoom=8|id=Q378527|type=shape|text=Interactive map of Montgomery County, Pennsylvania}}

'''Montgomery County''', colloquially referred to as '''Montco''',<ref name="Montco">{{Multiref2|{{cite web |title=Amos Lee Performs, Montco Train Derailment, The First Lady of World War II |url=https://whyy.org/episodes/amos-lee-eleanor-roosevelt-whitemarsh-montgomery-county-train-derailment-first-lady-of-world-war-ii/ |website=WHYY |access-date=July 20, 2023}}|{{cite web |title=NEXT Weather: Tornado warnings expire for Philadelphia, MontCo |url=https://www.cbsnews.com/philadelphia/news/next-weather-tornado-warning-for-philadelphia-montgomery-county/ |website=CBS News Philadelphia |date=July 16, 2023 |access-date=July 20, 2023}}|{{cite web |last1=Stamm |first1=Dan |title=Pa. Turnpike in Montco was closed for hours Tuesday morning |url=https://www.nbcphiladelphia.com/news/transportation-and-transit/pennsylvania-turnpike-westbound-closed-in-montgomery-county/3606356/ |website=NBC10 Philadelphia |date=July 18, 2023 |access-date=July 20, 2023}}}}</ref> is in the [[Commonwealth (U.S. state)|Commonwealth]] of [[Pennsylvania]]. As of the [[2020 United States census|2020 census]], the population of the county was 856,553, making it the [[List of counties in Pennsylvania|third-most populous county]] in Pennsylvania after [[Philadelphia County, Pennsylvania|Philadelphia]] and [[Allegheny County, Pennsylvania|Allegheny]] counties and the most populous county in Pennsylvania without a major city.<ref name="QF">{{cite web|title=State & County QuickFacts|url=https://www.census.gov/quickfacts/fact/table/montgomerycountypennsylvania/PST045221|publisher=[[United States Census Bureau]]|access-date=July 5, 2022}}</ref>

The [[county seat]] and largest city is [[Norristown, Pennsylvania|Norristown]].<ref name="GR6">{{cite web|url=http://www.naco.org/Counties/Pages/FindACounty.aspx |access-date=June 7, 2011 |title=Find a County |publisher=National Association of Counties |url-status=dead |archive-url=https://web.archive.org/web/20110531210815/http://www.naco.org/Counties/Pages/FindACounty.aspx |archive-date=May 31, 2011 }}</ref> The county is part of the [[Philadelphia]]–[[Camden, New Jersey|Camden]]–[[Wilmington, Delaware|Wilmington]] PA-[[New Jersey|NJ]]–[[Delaware|DE]]–[[Maryland|MD]] [[List of Metropolitan Statistical Areas|metropolitan statistical area]], known as the [[Delaware Valley]], and marks the Delaware Valley's northern border with the [[Lehigh Valley]] region of eastern Pennsylvania.

The county borders Philadelphia, the [[List of United States cities by population|nation's sixth-largest city]], to its southeast, [[Bucks County, Pennsylvania|Bucks County]] to its east, [[Berks County, Pennsylvania|Berks]] and [[Lehigh County, Pennsylvania|Lehigh]] counties to its north, [[Delaware County, Pennsylvania|Delaware County]] to its south, and [[Chester County, Pennsylvania|Chester County]] to its southwest.

The county was created on September 10, 1784, out of land originally part of [[Philadelphia County, Pennsylvania|Philadelphia County]]. The first courthouse was housed in [[Barley Sheaf Inn]]. The county is named after [[Richard Montgomery]], an [[American Revolutionary War]] general killed on December 31, 1775 while [[Battle of Quebec (1775)|attempting to capture]] [[Quebec City]].<ref>[https://www.montgomerycountypa.gov/2825/History "History"] at Montgomery County official website]</ref>

==Geography==
According to the [[United States Census Bureau|U.S. Census Bureau]], the county has a total area of {{convert|487|sqmi}}, {{convert|483|sqmi}} of which was land and {{convert|4.2|sqmi}} (0.9%) of which was water.<ref name="GR1">{{cite web|url=http://www2.census.gov/geo/docs/maps-data/data/gazetteer/counties_list_42.txt|publisher=United States Census Bureau|access-date=March 9, 2015|date=August 22, 2012|title=2010 Census Gazetteer Files}}</ref>

===Adjacent counties===
*[[Lehigh County, Pennsylvania|Lehigh County]] (north)
*[[Bucks County, Pennsylvania|Bucks County]] (northeast)
*[[Philadelphia County, Pennsylvania|Philadelphia County]] (southeast)
*[[Delaware County, Pennsylvania|Delaware County]] (southwest)
*[[Chester County, Pennsylvania|Chester County]] (west)
*[[Berks County, Pennsylvania|Berks County]] (northwest)

===National protected area===
*[[Valley Forge National Historical Park]] (part)

=== County-owned parks ===
{| class="wikitable"
|+
!Park<ref>{{Cite web |title=2023 Proposed Operating Budget |url=https://montcopa.org/DocumentCenter/View/36982/2023-Proposed-Operating-Budget-Worksheets-Final-11162022}}</ref>
!Acres
!Trail Miles
|-
|Perkiomen Valley Park
|800
|19
|-
|Green Lane Park
|3,400
|25
|-
|Schuylkill Canal Park
| -
|5
|-
|Lorimer Park
|230
|5.4
|-
|Lower Perkiomen Valley Park
|107
| -
|-
|Norristown Farm Park
|690
|8
|-
|Upper Schuylkill Valley Park
|15
| -
|}

==Demographics==
{{US Census population
|1790= 22918
|1800= 24150
|1810= 29703
|1820= 35793
|1830= 39406
|1840= 47241
|1850= 58291
|1860= 70500
|1870= 81612
|1880= 96494
|1890= 123290
|1900= 138995
|1910= 169590
|1920= 199310
|1930= 265804
|1940= 289247
|1950= 353068
|1960= 516682
|1970= 623799
|1980= 643621
|1990= 678111
|2000= 750097
|2010= 799884
|2020= 856553
|estyear=2022
|estimate=864683
|estref=<ref name="USCensusEst2021">{{cite web|url=https://www.census.gov/data/tables/time-series/demo/popest/2020s-counties-total.html|title=Annual Estimates of the Resident Population for Counties: April 1, 2020 to July 1, 2021|access-date=July 5, 2022}}</ref>
|align-fn=center
|footnote=U.S. Decennial Census<ref>{{cite web|url=https://www.census.gov/programs-surveys/decennial-census.html|title=U.S. Decennial Census|publisher=United States Census Bureau|access-date=March 9, 2015}}</ref><br />1790–1960<ref>{{cite web|url=http://mapserver.lib.virginia.edu|title=Historical Census Browser|publisher=University of Virginia Library|access-date=March 9, 2015}}</ref> 1900–1990<ref>{{cite web|url=https://www.census.gov/population/cencounts/pa190090.txt|title=Population of Counties by Decennial Census: 1900 to 1990|publisher=United States Census Bureau|editor-last=Forstall|editor-first=Richard L.|date=March 24, 1995|access-date=March 9, 2015}}</ref><br />1990–2000<ref>{{cite web|url=https://www.census.gov/population/www/cen2000/briefs/phc-t4/tables/tab02.pdf|title=Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000|publisher=United States Census Bureau|date=April 2, 2001|access-date=March 9, 2015}}</ref> 2010–2020<ref name="QF"/>
}}

===2020 census===
As of the 2020 census, the county was 73.27% White (72.18% White, non-Hispanic), 9.55% Black or African American, 0.22% Native American or Alaskan Native, 7.94% Asian, 0.02% Pacific Islander, and 2.87% some other race; 6.13% were two or more races. 6.36% of the population were Hispanic or Latino of any race.<ref>{{Cite web|url=https://data.census.gov/cedsci/table?q=Montgomery%20County,%20Pennsylvania&tid=DECENNIALPL2020.P2|title = Explore Census Data}}</ref>

{| class="wikitable"
|+Montgomery County Racial Composition<ref>{{Cite web|title =P2 HISPANIC OR LATINO, AND NOT HISPANIC OR LATINO BY RACE – 2020: DEC Redistricting Data (PL 94-171) – Montgomery County, Pennsylvania|url=https://data.census.gov/cedsci/table?q=Montgomery%20County,%20Pennsylvania&t=Race%20and%20Ethnicity&tid=DECENNIALPL2020.P2}}</ref>
!Race
!Num.
!Perc.
|-
|[[White (U.S. Census)|White]] (NH)
|618,244
|72.2%
|-
|[[African American (U.S. census)|Black or African American]] (NH)
|79,510
|9.3%
|-
|[[Native American (U.S. Census)|Native American]] (NH)
|763
|0.1%
|-
|[[Asian (U.S. Census)|Asian]] (NH)
|67,761
|8%
|-
|[[Pacific Islander (U.S. Census)|Pacific Islander]] (NH)
|168
|0.02%
|-
|[[Race (United States Census)|Other/Mixed]] (NH)
|35,595
|4.2%
|-
|[[Hispanic (U.S. Census)|Hispanic]] or [[Latino (U.S. Census)|Latino]]
|54,512
|6.4%
|}

The largest townships/boroughs in Montgomery County include:

{| class="wikitable sortable"
|-
! Township/borough !! Population ('''<small>2010 US Census</small>''') !! Density '''<small>mi<sup>2</sup></small>'''
|-
| [[Lower Merion Township, Pennsylvania|Lower Merion Township]] || 57,825 || 2,526.1
|-
| [[Abington Township, Montgomery County, Pennsylvania|Abington Township]] || 55,310 || 3,630.3
|-
| [[Cheltenham Township, Montgomery County, Pennsylvania|Cheltenham Township]] || 36,793 || 4,083.1
|-
| [[Norristown, Pennsylvania|Municipality of Norristown]] || 34,324 || 9,806.9
|-
| [[Upper Merion Township, Pennsylvania|Upper Merion Township]] || 28,395 || 1,593.3
|-
| [[Horsham Township, Montgomery County, Pennsylvania|Horsham Township]] || 26,147 || 1,398.6
|-
| [[Upper Dublin Township, Pennsylvania|Upper Dublin Township]] || 25,569 || 1,960.7
|-
| [[Lower Providence Township, Pennsylvania|Lower Providence Township]] || 25,436 || 1,458.8
|-
| [[Montgomery Township, Montgomery County, Pennsylvania|Montgomery Township]] || 24,790 || 2,067.1
|-
| [[Upper Moreland Township, Pennsylvania|Upper Moreland Township]] || 24,015 || 3,202
|}

== Economy ==<!-- This section is linked from [[Conshohocken, Pennsylvania]] -->
{{multiple image
| align             = right
| direction         = vertical
| header            = 
| header_align      = top/bottom
| header_background = 
| footer            = Montgomery County ranges from the densely populated [[Terraced house|rowhouse]] streets of [[Cheltenham Township, Pennsylvania|Cheltenham Township]] (top) to the forests and open land around [[Perkiomen Creek]] in the northern part of the county (bottom).
| footer_align      = top/bottom
| footer_background = 
| width1            = 220
| image1            = CheltTwp 18.JPG
| caption1          = 
| width2            = 220
| image2            = Perkiomen Creek 2006.jpg
| caption2          = 
}}

Montgomery County is a suburb of [[Philadelphia]], the nation's sixth most populous city. Many Montco residents work in the city, but the county is also a major employment center with large business parks in [[Blue Bell, Pennsylvania|Blue Bell]], [[Lansdale, Pennsylvania|Lansdale]], [[Fort Washington, Pennsylvania|Fort Washington]], [[Horsham, Pennsylvania|Horsham]], and [[King of Prussia, Pennsylvania|King of Prussia]] attracting thousands of workers from all over the region. The strong job base and taxes generated by those jobs have resulted in Montgomery County receiving the highest credit rating of 'AAA' from [[Standard & Poor's]], one of fewer than 30 counties in the United States with such a rating.<ref>"Montgomery County," [http://www.rydal-meadowbrook.org/county Rydal-Meadowbrook Civic Association] {{webarchive|url=https://web.archive.org/web/20131013174056/http://www.rydal-meadowbrook.org/county|date=October 13, 2013}}</ref> In 2012, [[Moody's Investors Service|Moody's]] downgraded the [[General obligation bond|general obligation]] rating to Aa1,<ref>{{Cite news |date=July 19, 2012 |title=Moody's downgrades Montgomery County's (PA) general obligation rating to Aa1 from Aaa; outlook is stable |work=Moodys.com |url=https://www.moodys.com/research/Moodys-downgrades-Montgomery-Countys-PA-general-obligation-rating-to-Aa1--PR_251258 |access-date=May 28, 2018}}</ref> and in 2018 the rating was revised back to Aaa.<ref>{{Cite web |title=Montgomery County, PA |url=https://www.montcopa.org/CivicAlerts.aspx?AID=2742 |access-date=May 28, 2018 |website=Montgomery County, PA |language=en |archive-date=May 28, 2018 |archive-url=https://web.archive.org/web/20180528133919/https://www.montcopa.org/CivicAlerts.aspx?AID=2742 |url-status=dead }}</ref>

Major employers include:<ref>[http://pasitesearch.com/topEmp.aspx Top 50 Employers by County – Montgomery] {{webarchive|url=https://web.archive.org/web/20131014113029/http://www.pasitesearch.com/topEmp.aspx|date=October 14, 2013}}</ref>

{{div col|colwidth=20em}}
*[[Abington School District]]
*[[ABM Industries]]
*[[ACTS Retirement-Life Communities]]
*[[Aetna]]
*[[Arcadia University]]
*[[Giant-Carlisle|Giant]]
*[[GlaxoSmithKline]]
*[[Hatfield Quality Meats]]
*[[Hatboro-Horsham School District]]
*Holy Redeemer Health System 
*[[Janssen Biotech|Janssen]]
*[[Jefferson Abington Hospital]]
*[[Lockheed Martin]]
*[[Lower Merion School District]]
*[[King of Prussia (shopping mall)|King of Prussia mall]]
*[[Main Line Health]]
*[[McNeil Consumer Healthcare]]
*[[Merck & Co.|Merck]]
*[[Montgomery County Community College]]
*[[Motorola Mobility]]
*[[Norristown Area School District]]
*[[North Penn School District]]
*[[Pfizer]]
*[[Prudential Financial|Prudential]]
*[[Quaker Chemical Corporation]]
*[[Quest Diagnostics]]
*[[SEI Investments Company]]
*[[Souderton Area School District]]
*[[Spring-Ford Area School District]]
{{div col end}}

==Education==

===Colleges and universities===
{{div col|colwidth=20em}}
*[[Arcadia University]]
*[[Bryn Athyn College]]
*[[Bryn Mawr College]]
*[[DeVry University]] – Fort Washington
*[[Gwynedd Mercy University]]
*[[Haverford College]]
*[[Manor College]]
*[[Montgomery County Community College]]
*[[Salus University|Pennsylvania College of Optometry]] (Salus University)
*[[Penn State Abington]] – a [[commonwealth campus]] of [[Pennsylvania State University]]
*[http://www.rrc.edu Reconstructionist Rabbinical College]
*[[Rosemont College]]
*[[St. Charles Borromeo Seminary]]
*[[Saint Joseph's University]]
*[[Temple University]] – [[Ambler, Pennsylvania|Ambler]]
*[[Ursinus College]]
*[[Westminster Theological Seminary]]
{{div col end}}

===Public school districts===
[[File:Map of Montgomery County Pennsylvania School Districts.png|thumb|Map of Montgomery County public school districts]]
School districts:<ref>{{cite map|author=Geography Division |title=2020 census - school district reference map: Montgomery County, PA |url=https://www2.census.gov/geo/maps/DC2020/PL20/st42_pa/schooldistrict_maps/c42091_montgomery/DC20SD_C42091.pdf |date=January 14, 2021|access-date=July 20, 2022 |publisher=[[U.S. Census Bureau]]}} - [https://www2.census.gov/geo/maps/DC2020/PL20/st42_pa/schooldistrict_maps/c42091_montgomery/DC20SD_C42091_SD2MS.txt Text list] - See also [https://www.montgomerycountypa.gov/DocumentCenter/View/36224/2022_School_Districts county's school district map]</ref>

{{div col|colwidth=20em}}
*[[Abington School District]]
*[[Boyertown Area School District]]
*[[Cheltenham Township School District]]
*[[Colonial School District (Pennsylvania)|Colonial School District]]
*[[Hatboro-Horsham School District]]
*[[Jenkintown School District]]
*[[Lower Merion School District]]
*[[Lower Moreland Township School District]]
*[[Methacton School District]]
*[[Norristown Area School District]]
*[[North Penn School District]]
*[[Perkiomen Valley School District]]
*[[Pottsgrove School District]]
*[[Pottstown School District]]
*[[Souderton Area School District]]
*[[Springfield Township School District]]
*[[Spring-Ford Area School District]]
*[[Upper Dublin School District]]
*[[Upper Merion Area School District]]
*[[Upper Moreland School District]]
*[[Upper Perkiomen School District]]
*[[Wissahickon School District]]
*[[Bryn Athyn School District]] – exists as an entity, but does not operate any schools. Public school students attend class in neighboring districts.<ref>[http://www.brynathynboro.org/meetings_&_notices.htm Meetings & Notices<!-- Bot generated title -->] {{webarchive|url=https://web.archive.org/web/20070723103422/http://www.brynathynboro.org/meetings_%26_notices.htm |date=July 23, 2007 }}</ref>
{{div col end}}

===Private secondary schools===
{{div col|colwidth=20em}}
*[http://www.ancss.org Academy Of The New Church Boys School]
*[http://www.ancss.org Academy Of The New Church Girls School]
*[[Abington Friends School]]
*[[The Baldwin School]]
*[[AIM Academy]]
*[[Jack M. Barrack Hebrew Academy (Bryn Mawr, Pennsylvania)|Jack M. Barrack Hebrew Academy]], formerly known as the Akiba Hebrew Academy
*[[Bishop McDevitt High School (Wyncote, Pennsylvania)|Bishop McDevitt High School]] (closed)
*Calvary Baptist School
*[[Coventry Christian Schools]]
*[[Dock Mennonite Academy]]
*[[Friends' Central School]]
*[[Germantown Academy]]
*[[Gwynedd Mercy Academy High School]]
*[[Haverford School]]
*[[The Hill School]]
*Huntingdon Valley Christian Academy
*Indian Creek Mennonite School
*Lakeside School
*[[Lansdale Catholic High School]]
*[[La Salle College High School]]
*Lincoln Academy
*Main Line Academy
*[[Martin Luther School]]
*Mary, Mother of the Redeemer Catholic School
*Meadowbrook School
*[[Merion Mercy Academy]]
*[[Mount Saint Joseph Academy (Flourtown, Pennsylvania)|Mount Saint Joseph Academy]]
*New Life Youth and Family Services
*The Pathway School
*[[The Perkiomen School]]
*[http://www.phil-mont.com Phil-Mont Christian Academy]
*[[Pope John Paul II High School (Upper Providence Township, Montgomery County, Pennsylvania)|Pope John Paul II Catholic High School]], replaced [[Kennedy-Kenrick Catholic High School]] and [[Saint Pius X High School (Lower Pottsgrove Township, Pennsylvania)|Saint Pius X High School]] in 2010.
*[[Reformation Christian School]]
*[[Saint Aloysius School]]
*[[Saint Basil Academy (Jenkintown, Pennsylvania)|Saint Basil Academy]] (closed)
*[[Saint Katherine Day School]]
*[[Stowe Lighthouse Christ Academy]]
*[[Shipley School|The Shipley School]]
*[[Torah Academy of Greater Philadelphia]]
*[[Trinity Christian Academy (Pennsylvania)|Trinity Christian Academy]]
*[[Valley Christian School at Huntingdon Valley Presbyterian Church]]
*[[Valley Forge Baptist Academy]]
*[[Wordsworth Academy]]
*[[Wyncote Academy]]
{{div col end}}

===Night schools/adult education===
*Abington Township Adult School
*Cheltenham Township Adult School

==Communities==
[[File:Map of Montgomery County Pennsylvania With Municipal and Township Labels.png|right|thumb|Map of Montgomery County with municipal labels showing boroughs (red), townships (white), and census-designated places (blue)]]

Under Pennsylvania law, five types of incorporated municipalities are listed: [[List of cities in Pennsylvania|cities]], [[List of towns and boroughs in Pennsylvania|boroughs]], [[List of townships in Pennsylvania|townships]], [[Home Rule Municipality (Pennsylvania)|home rule municipalities]] (which can include communities that bear the name "Borough" or "Township") and, in at most two cases, [[List of towns and boroughs in Pennsylvania#Towns|towns]]. These boroughs, townships, and home rule municipalities are located in Montgomery County:

===Home rule municipalities===
* [[Bryn Athyn, Pennsylvania|Bryn Athyn]] 
* [[Cheltenham Township, Montgomery County, Pennsylvania|Cheltenham Township]]
* [[Horsham Township, Pennsylvania|Horsham Township]]
* [[Norristown, Pennsylvania|Norristown]] (county seat)
* [[Plymouth Township, Montgomery County, Pennsylvania|Plymouth Township]]
* [[Whitemarsh Township, Pennsylvania|Whitemarsh Township]]

===Boroughs===
{{div col|colwidth=12em}}
*[[Borough of Ambler|Ambler]]
*[[Bridgeport, Pennsylvania|Bridgeport]]
*[[Bryn Athyn, Pennsylvania|Bryn Athyn]]
*[[Collegeville, Pennsylvania|Collegeville]]
*[[Conshohocken, Pennsylvania|Conshohocken]]
*[[East Greenville, Pennsylvania|East Greenville]]
*[[Green Lane, Pennsylvania|Green Lane]]
*[[Hatboro, Pennsylvania|Hatboro]]
*[[Hatfield, Pennsylvania|Hatfield]]
*[[Jenkintown, Pennsylvania|Jenkintown]]
*[[Lansdale, Pennsylvania|Lansdale]]
*[[Narberth, Pennsylvania|Narberth]]
*[[Norristown, Pennsylvania|Norristown]]
*[[North Wales, Pennsylvania|North Wales]]
*[[Pennsburg, Pennsylvania|Pennsburg]]
*[[Pottstown, Pennsylvania|Pottstown]]
*[[Red Hill, Pennsylvania|Red Hill]]
*[[Rockledge, Pennsylvania|Rockledge]]
*[[Royersford, Pennsylvania|Royersford]]
*[[Schwenksville, Pennsylvania|Schwenksville]]
*[[Souderton, Pennsylvania|Souderton]]
*[[Telford, Pennsylvania|Telford]] (lies partly in [[Bucks County, Pennsylvania|Bucks County]])
*[[Trappe, Pennsylvania|Trappe]]
*[[West Conshohocken, Pennsylvania|West Conshohocken]]
{{div col end}}

===Townships===
{{div col|colwidth=12em}}
*[[Abington Township, Montgomery County, Pennsylvania|Abington]]
*[[Cheltenham Township, Montgomery County, Pennsylvania|Cheltenham]]
*[[Douglass Township, Montgomery County, Pennsylvania|Douglass]]
*[[East Norriton Township, Pennsylvania|East Norriton]]
*[[Franconia Township, Pennsylvania|Franconia]]
*[[Hatfield Township, Pennsylvania|Hatfield]]
*[[Horsham Township, Pennsylvania|Horsham]]
*[[Limerick Township, Pennsylvania|Limerick]]
*[[Lower Frederick Township, Pennsylvania|Lower Frederick]]
*[[Lower Gwynedd Township, Pennsylvania|Lower Gwynedd]]
*[[Lower Merion Township, Pennsylvania|Lower Merion]]
*[[Lower Moreland Township, Pennsylvania|Lower Moreland]]
*[[Lower Pottsgrove Township, Pennsylvania|Lower Pottsgrove]]
*[[Lower Providence Township, Pennsylvania|Lower Providence]]
*[[Lower Salford Township, Pennsylvania|Lower Salford]]
*[[Marlborough Township, Pennsylvania|Marlborough]]
*[[Montgomery Township, Montgomery County, Pennsylvania|Montgomery]]
*[[New Hanover Township, Pennsylvania|New Hanover]]
*[[Perkiomen Township, Pennsylvania|Perkiomen]]
*[[Plymouth Township, Montgomery County, Pennsylvania|Plymouth]]
*[[Salford Township, Pennsylvania|Salford]]
*[[Skippack Township, Pennsylvania|Skippack]]
*[[Springfield Township, Montgomery County, Pennsylvania|Springfield]]
*[[Towamencin Township, Pennsylvania|Towamencin]]
*[[Upper Dublin Township, Pennsylvania|Upper Dublin]]
*[[Upper Frederick Township, Pennsylvania|Upper Frederick]]
*[[Upper Gwynedd Township, Pennsylvania|Upper Gwynedd]]
*[[Upper Hanover Township, Pennsylvania|Upper Hanover]]
*[[Upper Merion Township, Pennsylvania|Upper Merion]]
*[[Upper Moreland Township, Pennsylvania|Upper Moreland]]
*[[Upper Pottsgrove Township, Pennsylvania|Upper Pottsgrove]]
*[[Upper Providence Township, Montgomery County, Pennsylvania|Upper Providence]]
*[[Upper Salford Township, Pennsylvania|Upper Salford]]
*[[West Norriton Township, Pennsylvania|West Norriton]]
*[[West Pottsgrove Township, Pennsylvania|West Pottsgrove]]
*[[Whitemarsh Township, Pennsylvania|Whitemarsh]]
*[[Whitpain Township, Pennsylvania|Whitpain]]
*[[Worcester Township, Pennsylvania|Worcester]]
{{div col end}}

=== Unincorporated areas ===

==== Census-designated places ====
[[Census-designated place]]s are geographical areas designated by the [[United States Census Bureau]] for the purposes of compiling demographic data. They are not actual jurisdictions under Pennsylvania law. Other unincorporated communities, such as villages, may be listed here, as well.

{{div col|colwidth=12em}}
*[[Arcadia University, Pennsylvania|Arcadia University]]
*[[Ardmore, Pennsylvania|Ardmore]]
*[[Audubon, Pennsylvania|Audubon]]
*[[Bala Cynwyd, Pennsylvania|Bala Cynwyd]]
*[[Blue Bell, Pennsylvania|Blue Bell]]
*[[Bryn Mawr, Pennsylvania|Bryn Mawr]]
*[[Cheltenham, Pennsylvania|Cheltenham (Cheltenham Village)]]
*[[Eagleville, Montgomery County, Pennsylvania|Eagleville]]
*[[Elkins Park, Pennsylvania|Elkins Park]]
*[[Evansburg, Pennsylvania|Evansburg]]
*[[Flourtown, Pennsylvania|Flourtown]]
*[[Fort Washington, Pennsylvania|Fort Washington]]
*[[Gilbertsville, Pennsylvania|Gilbertsville]]
*[[Glenside, Pennsylvania|Glenside]]
*[[Halfway House, Pennsylvania|Halfway House]]
*[[Harleysville, Pennsylvania|Harleysville]]
*[[Haverford College, Pennsylvania|Haverford College]]
*[[Horsham, Pennsylvania|Horsham]]
*[[King of Prussia, Pennsylvania|King of Prussia]]
*[[Kulpsville, Pennsylvania|Kulpsville]]
*[[McKinley, Montgomery County, Pennsylvania|McKinley]]
*[[Maple Glen, Pennsylvania|Maple Glen]]
*[[Merion Station, Pennsylvania|Merion Station]]
*[[Mont Clare, Pennsylvania|Mont Clare]]
*[[Montgomeryville, Pennsylvania|Montgomeryville]]
*[[Oreland, Pennsylvania|Oreland]]
*[[Penn Wynne, Pennsylvania|Penn Wynne]]
*[[Plymouth Meeting, Pennsylvania|Plymouth Meeting]]
*[[Pottsgrove, Pennsylvania|Pottsgrove]]
*[[Rosemont, Pennsylvania|Rosemont]]
*[[Roslyn, Pennsylvania|Roslyn]]
*[[Sanatoga, Pennsylvania|Sanatoga]]
*[[Skippack, Pennsylvania|Skippack]]
*[[Spring House, Pennsylvania|Spring House]]
*[[Spring Mount, Pennsylvania|Spring Mount]]
*[[Stowe, Pennsylvania|Stowe]]
*[[Swedeland, Pennsylvania|Swedeland]]
*[[Trooper, Pennsylvania|Trooper]]
*[[Villanova, Pennsylvania|Villanova]] (partly in Delaware County)
*[[Willow Grove, Pennsylvania|Willow Grove]]
*[[Woxall, Pennsylvania|Woxall]]
*[[Wyncote, Pennsylvania|Wyncote]]
*[[Wyndmoor, Pennsylvania|Wyndmoor]]
{{div col end}}

Even though the historic village of Valley Forge, as well as the park, are partially located within Montgomery County, the modern village is in Chester County, PA

==== Other communities ====
{{div col|colwidth=22em}}
*[[Ardsley, Pennsylvania|Ardsley]]
*[[Bethayres, Pennsylvania|Bethayres]]
*[[Dresher, Pennsylvania|Dresher]]
*[[Frederick, Pennsylvania|Frederick]], a village in New Hanover Township.<ref>[[Upper Frederick Township, Pennsylvania]]</ref>
*[[Graterford, Pennsylvania|Graterford]]
*[[Gladwyne, Pennsylvania|Gladwyne]]
*[[Gwynedd, Pennsylvania|Gwynedd]]
*[[Gwynedd Valley, Pennsylvania|Gwynedd Valley]]
*[[Huntingdon Valley, Pennsylvania|Huntingdon Valley]] (small sections in Bucks County)
*[[Lafayette Hill, Pennsylvania|Lafayette Hill]]
*[[Lederach, Pennsylvania|Lederach]]
*[[Linfield, Pennsylvania|Linfield]]
*[[Meadowbrook, Pennsylvania|Meadowbrook]]
*[[Melrose Park, Pennsylvania|Melrose Park]]
*[[Oaks, Pennsylvania|Oaks]]
*[[Port Providence, Pennsylvania|Port Providence]]
*[[Wynnewood, Pennsylvania|Wynnewood]] (partly in Delaware County)
{{div col end}}

===Population ranking===
The population ranking of the following table is based on the [[2020 United States census|2020 census]] of Montgomery County.<ref>{{Cite web |last= |first= |title=2020 Census Results |url=https://www.census.gov/2020results |access-date=February 10, 2024 |website=Census.gov}}</ref>

'''†''' ''county seat''

{| class="wikitable sortable"
|-
!Rank
!City/Town/etc.
!Municipal type
!Population (2020 Census)
|-
| 1
| [[Lower Merion Township, Pennsylvania|Lower Merion]]
|Township
| 63,633
|-
| 2
| [[Abington Township, Montgomery County, Pennsylvania|Abington]]
|Township
| 58,502
|-
| 3
| [[Cheltenham Township, Montgomery County, Pennsylvania|Cheltenham]]
|Township
| 37,452
|- style="background-color:#FFDFBF;"
| 4
|† [[Norristown, Pennsylvania|Norristown]]
| Municipality
| 35,748
|-
| 5
| [[Upper Merion Township, Pennsylvania|Upper Merion]]
|Township
| 33,613
|-
| 6
| [[Upper Dublin Township, Pennsylvania|Upper Dublin]]
|Township
| 26,665
|-
| 7
| [[Horsham Township, Pennsylvania|Horsham]]
|Township
| 26,564
|-
| 8
| [[Montgomery Township, Montgomery County, Pennsylvania|Montgomery]]
|Township
| 25,862
|-
| 9
| [[Lower Providence Township, Pennsylvania|Lower Providence]]
|Township
| 25,625
|-
| 10
| [[Upper Moreland Township, Pennsylvania|Upper Moreland]]
|Township
| 24,015
|- style="background-color:#FFF5EE;"
| 11
| [[Pottstown, Pennsylvania|Pottstown]]
| Borough
| 23,433
|- style="background-color:#F0FFF0;"
| 12
| [[King of Prussia, Pennsylvania|King of Prussia]]
| CDP
| 22,028
|-
| 13
| [[Upper Providence Township, Montgomery County, Pennsylvania|Upper Providence]]
|Township
| 21,219
|-
| 14
| [[Springfield Township, Montgomery County, Pennsylvania|Springfield]]
|Township
| 20,814
|-
| 15
| [[Limerick Township, Pennsylvania|Limerick]]
|Township
| 20,458
|-
| 16
| [[Whitpain Township, Pennsylvania|Whitpain]]
|Township
| 20,333
|-
| 17
| [[Whitemarsh Township, Pennsylvania|Whitemarsh]]
|Township
| 19,707
|- style="background-color:#FFF5EE;"
| 18
| [[Lansdale, Pennsylvania|Lansdale]]
| Borough
| 18,773
|-
| 19
| [[Plymouth Township, Montgomery County, Pennsylvania|Plymouth]]
|Township
| 18,256
|-
| 20
| [[Towamencin Township, Pennsylvania|Towamencin]]
|Township
| 18,009
|-
| 21
| [[Hatfield Township, Pennsylvania|Hatfield]]
|Township
| 17,294
|-
| 22
| [[Upper Gwynedd Township, Pennsylvania|Upper Gwynedd]]
|Township
| 17,072
|-
| 23
| [[West Norriton Township, Pennsylvania|West Norriton]]
|Township
| 16,201
|-
| 24
| [[Lower Salford Township, Pennsylvania|Lower Salford]]
|Township
| 15,896
|- style="background-color:#F0FFF0;"
| 25
| [[Horsham, Pennsylvania|Horsham]]
| CDP
| 15,193
|-
| 26
| [[Skippack Township, Pennsylvania|Skippack]]
|Township
| 14,386
|-
| 27
| [[Lower Moreland Township, Pennsylvania|Lower Moreland]]
|Township
| 13,917
|- style="background-color:#F0FFF0;"
| 28
| [[Willow Grove, Pennsylvania|Willow Grove]]
| CDP
| 13,730
|-
| 29
| [[East Norriton Township, Pennsylvania|East Norriton]]
|Township
| 13,590
|- style="background-color:#F0FFF0;"
| 30
| [[Ardmore, Pennsylvania|Ardmore]] (''partially in [[Delaware County, Pennsylvania|Delaware County]]'')
| CDP
| 13,566
|-
| 31
| [[Franconia Township, Pennsylvania|Franconia]]
|Township
| 13,259
|- style="background-color:#F0FFF0;"
| 32
| [[Montgomeryville, Pennsylvania|Montgomeryville]]
| CDP
| 12,998
|-
| 33
| [[New Hanover Township, Pennsylvania|New Hanover]]
|Township
| 12,973
|-
| 34
| [[Lower Pottsgrove Township, Pennsylvania|Lower Pottsgrove]]
|Township
| 12,217
|-
| 35
| [[Lower Gwynedd Township, Pennsylvania|Lower Gwynedd]]
|Township
| 12,076
|-
| 36
| [[Douglass Township, Montgomery County, Pennsylvania|Douglass]]
|Township
| 10,585
|- style="background-color:#F0FFF0;"
| 37
| [[Harleysville, Pennsylvania|Harleysville]]
| CDP
| 9,899
|-
| 38
| [[Worcester Township, Pennsylvania|Worcester]]
|Township
| 9,750
|- style="background-color:#FFF5EE;"
| 39
| [[Conshohocken, Pennsylvania|Conshohocken]]
| Borough
| 9,261
|-
| 40
| [[Perkiomen Township, Pennsylvania|Perkiomen]]
|Township
| 8,959
|- style="background-color:#F0FFF0;"
| 41
| [[Audubon, Pennsylvania|Audubon]]
| CDP
| 8,688
|- style="background-color:#F0FFF0;"
| 42
| [[Sanatoga, Pennsylvania|Sanatoga]]
| CDP
| 8,496
|-
| 43
| [[Upper Hanover Township, Pennsylvania|Upper Hanover]]
|Township
| 8,350
|- style="background-color:#FFF5EE;"
| 44
| [[Hatboro, Pennsylvania|Hatboro]]
| Borough
| 8,238
|- style="background-color:#F0FFF0;"
| 45
| [[Kulpsville, Pennsylvania|Kulpsville]]
| CDP
| 8,159
|- style="background-color:#F0FFF0;"
| 46
| [[Glenside, Pennsylvania|Glenside]]
| CDP
| 7,737
|- style="background-color:#F0FFF0;"
| 47
| [[Plymouth Meeting, Pennsylvania|Plymouth Meeting]]
| CDP
| 7,452
|- style="background-color:#FFF5EE;"
| 48
| [[Souderton, Pennsylvania|Souderton]]
| Borough
| 7,191
|- style="background-color:#FFF5EE;"
| 49
| [[Borough of Ambler|Ambler]]
| Borough
| 6,807
|- style="background-color:#F0FFF0;"
| 50
| [[Maple Glen, Pennsylvania|Maple Glen]]
| CDP
| 6,647
|- style="background-color:#F0FFF0;"
| 51
| [[Blue Bell, Pennsylvania|Blue Bell]]
| CDP
| 6,506
|- style="background-color:#F0FFF0;"
| 52
| [[Penn Wynne, Pennsylvania|Penn Wynne]]
| CDP
| 6,493
|- style="background-color:#F0FFF0;"
| 53
| [[Oreland, Pennsylvania|Oreland]]
| CDP
| 6,210
|- style="background-color:#F0FFF0;"
| 54
| [[Fort Washington, Pennsylvania|Fort Washington]]
| CDP
| 5,910
|- style="background-color:#F0FFF0;"
| 55
| [[Bryn Mawr, Pennsylvania|Bryn Mawr]]
| CDP
| 5,879
|- 
| 56
| [[Upper Pottsgrove Township, Pennsylvania|Upper Pottsgrove]]
|Township
| 5,870
|- style="background-color:#F0FFF0;"
| 57
| [[Wyndmoor, Pennsylvania|Wyndmoor]]
| CDP
| 5,853
|- style="background-color:#F0FFF0;"
| 58
| [[Gilbertsville, Pennsylvania|Gilbertsville]]
| CDP
| 5,508
|- style="background-color:#F0FFF0;"
| 59
| [[Trooper, Pennsylvania|Trooper]]
| CDP
| 5,481
|- style="background-color:#FFF5EE;"
| 60
| [[Collegeville, Pennsylvania|Collegeville]]
| Borough
| 5,043
|- style="background-color:#FFF5EE;"
| 61
| [[Bridgeport, Pennsylvania|Bridgeport]]
| Borough
| 5,015
|- style="background-color:#FFF5EE;"
| 62
| [[Royersford, Pennsylvania|Royersford]]
| Borough
| 4,940
|- style="background-color:#FFF5EE;"
| 63
| [[Telford, Pennsylvania|Telford]] (''partially in [[Bucks County, Pennsylvania|Bucks County]]'')
| Borough
| 4,928
|-
| 64
| [[Lower Frederick Township, Pennsylvania|Lower Frederick]]
|Township
| 4,830
|- style="background-color:#F0FFF0;"
| 65
| [[Eagleville, Montgomery County, Pennsylvania|Eagleville]]
| CDP
| 4,800
|- style="background-color:#F0FFF0;"
| 66
| [[Flourtown, Pennsylvania|Flourtown]]
| CDP
| 4,786
|- style="background-color:#FFF5EE;"
| 67
| [[Jenkintown, Pennsylvania|Jenkintown]]
| Borough
| 4,719
|- style="background-color:#FFF5EE;"
| 68
| [[Narberth, Pennsylvania|Narberth]]
| Borough
| 4,492
|- style="background-color:#F0FFF0;"
| 69
| [[Gladwyne, Pennsylvania|Gladwyne]]
| CDP
| 4,096
|- style="background-color:#FFF5EE;"
| 70
| [[Trappe, Pennsylvania|Trappe]]
| Borough
| 4,002
|- style="background-color:#FFF5EE;"
| 71
| [[Pennsburg, Pennsylvania|Pennsburg]]
| Borough
| 3,889
|- style="background-color:#F0FFF0;"
| 72
| [[Spring House, Pennsylvania|Spring House]]
| CDP
| 3,978
|- style="background-color:#F0FFF0;"
| 73
| [[Skippack, Pennsylvania|Skippack]]
| CDP
| 3,928
|-
| 74
| [[West Pottsgrove Township, Pennsylvania|West Pottsgrove]]
|Township
| 3,798
|-
| 75
| [[Upper Frederick Township, Pennsylvania|Upper Frederick]]
|Township
| 3,703
|- style="background-color:#F0FFF0;"
| 76
| [[Stowe, Pennsylvania|Stowe]]
| CDP
| 3,697
|-
| 77
| [[Marlborough Township, Pennsylvania|Marlborough]]
|Township
| 3,520
|- style="background-color:#FFF5EE;"
| 78
| [[Hatfield, Pennsylvania|Hatfield]]
| Borough
| 3,496
|- style="background-color:#F0FFF0;"
| 79
| [[Pottsgrove, Pennsylvania|Pottsgrove]]
| CDP
| 3,471
|- style="background-color:#FFF5EE;"
| 80
| [[North Wales, Pennsylvania|North Wales]]
| Borough
| 3,426
|- style="background-color:#F0FFF0;"
| 81
| [[Halfway House, Pennsylvania|Halfway House]]
| CDP
| 3,273
|-
| 82
| [[Upper Salford Township, Pennsylvania|Upper Salford]]
|Township
| 3,172
|- style="background-color:#FFF5EE;"
| 83
| [[East Greenville, Pennsylvania|East Greenville]]
| Borough
| 3,166
|- style="background-color:#F0FFF0;"
| 84
| [[Wyncote, Pennsylvania|Wyncote]]
| CDP
| 3,081
|-
| 85
| [[Salford Township, Pennsylvania|Salford]]
|Township
| 3,035
|- style="background-color:#FFF5EE;"
| 86
| [[Rockledge, Pennsylvania|Rockledge]]
| Borough
| 2,638
|- style="background-color:#F0FFF0;"
| 87
| [[Spring Mount, Pennsylvania|Spring Mount]]
| CDP
| 2,498
|- style="background-color:#FFF5EE;"
| 88
| [[Red Hill, Pennsylvania|Red Hill]]
| Borough
| 2,496
|- style="background-color:#F0FFF0;"
| 89
| [[Evansburg, Pennsylvania|Evansburg]]
| CDP
| 2,410
|- style="background-color:#F0FFF0;"
| 90
| [[Haverford College, Pennsylvania|Haverford College]] (''mostly in Delaware County'')
| CDP
| 1,497
|- style="background-color:#FFF5EE;"
| 91
| [[West Conshohocken, Pennsylvania|West Conshohocken]]
| Borough
| 1,493
|- style="background-color:#F0FFF0;"
| 92
| [[Woxhall, Pennsylvania|Woxhall]]
| CDP
| 1,297
|- style="background-color:#FFF5EE;"
| 93
| [[Schwenksville, Pennsylvania|Schwenksville]]
| Borough
| 1,296
|- style="background-color:#FFDFBF;"
| 94
| [[Bryn Athyn, Pennsylvania|Bryn Athyn]]
| Municipality
| 1,272   
|- style="background-color:#F0FFF0;"
| 95
| [[Arcadia University, Pennsylvania|Arcadia University]]
| CDP
| 758
|- style="background-color:#FFF5EE;"
| 96
| [[Green Lane, Pennsylvania|Green Lane]]
| Borough
| 490
|}

== Transportation ==
===Major roads and highways===
[[File:2022-10-11 11 58 25 View east along Interstate 276 (Pennsylvania Turnpike Delaware River Extension) from the overpass for Interstate 476 (Pennsylvania Turnpike Northeast Extension) in Plymouth Township, Montgomery County, Pennsylvania.jpg|thumb|I-276/[[Pennsylvania Turnpike]] eastbound at the [[Interstate 476]]/Pennsylvania Turnpike Northeast Extension in Montgomery County]]
{{div col|colwidth=22em}}
*{{jct|state=PA|I|76|dab1=Philadelphia}}
*{{jct|state=PA|I|276|PATP}}
*{{jct|state=PA|I|476|PANE}}
*{{jct|state=PA|US|1}}
*{{jct|state=PA|US|30}} 
*{{jct|state=PA|US|202}}
*{{jct|state=PA|US-Bus|202}}
*{{jct|state=PA|US|422}}
*{{jct|state=PA|PA|23}}
*{{jct|state=PA|PA|29}}
*{{jct|state=PA|PA|63}}
*{{jct|state=PA|PA|73}}
*{{jct|state=PA|PA|100}}
*{{jct|state=PA|PA|113}}
*{{jct|state=PA|PA|152}}
*{{jct|state=PA|PA|232}}
*{{jct|state=PA|PA|252}}
*{{jct|state=PA|PA|263}}
*{{jct|state=PA|PA|309}}
*{{jct|state=PA|PA|320}}
*{{jct|state=PA|PA|332}}
*{{jct|state=PA|PA|363}}
*{{jct|state=PA|PA|463}}
*{{jct|state=PA|PA|563}}
*{{jct|state=PA|PA|611}}
*{{jct|state=PA|PA|663}}
{{div col end}}

=== Public transportation ===
The county is served by the [[SEPTA]], which include bus, commuter rail, and interurban rail services. [[Pottstown Area Rapid Transit]] (PART) also provides bus services around the [[Pottstown, Pennsylvania|Pottstown]] area in the western portion of the county.<ref>{{Cite web |title=Welcome Aboard! |url=https://pottstownarearapidtransit.com/ |access-date=March 22, 2023 |website=Pottstown Area Rapid Transit |language=en-US}}</ref>

* SEPTA
** [[City Transit Division (SEPTA)|City Division]] and [[SEPTA Suburban Division bus routes|Suburban Division]] bus routes
** Regional Rail's [[Cynwyd Line|Cynwyd]], [[Lansdale/Doylestown Line|Lansdale/Doylestown]], [[Manayunk/Norristown Line|Manayunk/Norristown]], [[Paoli/Thorndale Line|Paoli/Thorndale]], [[Warminster Line|Warminster]], and [[West Trenton Line|West Trenton]] lines
** [[Norristown High Speed Line]] (NHSL), an interurban light rapid transit line connecting the [[Norristown Transportation Center]] to [[69th Street Transportation Center]] in Upper Darby, Delaware County

=== Airports ===
Commercial airline service is provided primarily by [[Philadelphia International Airport]], one of the nation's largest commercial airports, located in [[Philadelphia County, Pennsylvania|Philadelphia]] and [[Delaware County, Pennsylvania|Delaware]] counties.<ref>{{Cite web |title=About Us {{!}} PHL.org |url=https://www.phl.org/about/about-us |access-date=March 22, 2023 |website=www.phl.org}}</ref>

Other public use airports include [[Heritage Field Airport|Heritage Field]] in [[Limerick Township, Pennsylvania|Limerick Township]], [[Wings Field]] in [[Blue Bell, Pennsylvania|Blue Bell]], and [[Pottstown Municipal Airport]] in [[Pottstown, Pennsylvania|Pottstown]].

==Culture==
*[[The Institutes for the Achievement of Human Potential]] (IAHP), a [[nonprofit]] organization founded by Glenn Doman, was established in [[Wyndmoor]] in 1955. The IAHP is an educational organization that teaches parents about child brain development, and is a treatment center for brain-injured children.
*The [[Old York Road Symphony]], based in [[Abington Township, Montgomery County, Pennsylvania|Abington]], is one of the oldest all-volunteer orchestras in the country, founded in 1932.

==Climate==
The majority of the county has a hot-summer [[humid continental climate]] (''Dfa''). In most southern areas of the county and along the Schuylkill River including Pottstown a [[humid subtropical climate]] (''Cfa'') exists. The [[hardiness zone]] is 7a for the majority of the county and 7b in most areas south of Interstate 276. 6b only continues to exist in some very small higher areas in the north. [https://planthardiness.ars.usda.gov/]

{{Weather box
| width = auto
| single line = Y
| location = Upper Hanover Twp (Elevation: {{convert|489|ft|m|abbr=on|disp=semicolon}}) 1981 - 2010 Averages
| Jan high F = 37.8
| Feb high F = 41.1
| Mar high F = 49.8
| Apr high F = 61.7
| May high F = 72.1
| Jun high F = 80.8
| Jul high F = 84.9
| Aug high F = 83.2
| Sep high F = 76.2
| Oct high F = 64.5
| Nov high F = 53.3
| Dec high F = 41.8
| year high F = 62.4
| Jan mean F = 29.3
| Feb mean F = 31.9
| Mar mean F = 39.7
| Apr mean F = 50.5
| May mean F = 60.4
| Jun mean F = 69.5
| Jul mean F = 74.0
| Aug mean F = 72.3
| Sep mean F = 64.8
| Oct mean F = 53.2
| Nov mean F = 43.5
| Dec mean F = 33.5
| year mean F = 52.0
| Jan low F = 20.8
| Feb low F = 22.7
| Mar low F = 29.6
| Apr low F = 39.2
| May low F = 48.7
| Jun low F = 58.3
| Jul low F = 63.0
| Aug low F = 61.4
| Sep low F = 53.4
| Oct low F = 41.9
| Nov low F = 33.7
| Dec low F = 25.2
| year low F = 41.6
| precipitation colour = green
| Jan precipitation inch = 3.27
| Feb precipitation inch = 2.71
| Mar precipitation inch = 3.55
| Apr precipitation inch = 3.86
| May precipitation inch = 4.27
| Jun precipitation inch = 4.21
| Jul precipitation inch = 4.83
| Aug precipitation inch = 3.90
| Sep precipitation inch = 4.63
| Oct precipitation inch = 4.26
| Nov precipitation inch = 3.65
| Dec precipitation inch = 3.75
| year precipitation inch = 46.89
| humidity colour = green
| Jan humidity = 68.4
| Feb humidity = 65.1
| Mar humidity = 60.6
| Apr humidity = 59.5
| May humidity = 63.6
| Jun humidity = 69.0
| Jul humidity = 69.0
| Aug humidity = 71.8
| Sep humidity = 72.9
| Oct humidity = 71.4
| Nov humidity = 70.4
| Dec humidity = 70.7
| year humidity = 67.7
| Jan dew point F = 20.2
| Feb dew point F = 21.5
| Mar dew point F = 27.2
| Apr dew point F = 36.9
| May dew point F = 48.0
| Jun dew point F = 58.9
| Jul dew point F = 63.2
| Aug dew point F = 62.7
| Sep dew point F = 55.9
| Oct dew point F = 44.2
| Nov dew point F = 34.5
| Dec dew point F = 25.0
| year dew point F = 41.6
| source 1 = PRISM<ref name=prism>{{cite web|url=http://prism.oregonstate.edu/explorer/|title=PRISM Climate Group, Oregon State University|access-date=August 9, 2019}}</ref>
}}

{{Weather box
| width = auto
| single line = Y
| location = Cheltenham (Elevation: {{convert|125|ft|m|abbr=on|disp=semicolon}}) 1981 - 2010 Averages
| Jan high F = 40.6
| Feb high F = 43.9
| Mar high F = 52.0
| Apr high F = 63.3
| May high F = 73.0
| Jun high F = 82.3
| Jul high F = 86.3
| Aug high F = 84.9
| Sep high F = 78.0
| Oct high F = 66.7
| Nov high F = 55.9
| Dec high F = 44.9
| year high F = 64.4
| Jan mean F = 33.2
| Feb mean F = 35.9
| Mar mean F = 43.2
| Apr mean F = 53.7
| May mean F = 63.2
| Jun mean F = 72.8
| Jul mean F = 77.3
| Aug mean F = 76.0
| Sep mean F = 68.8
| Oct mean F = 57.3
| Nov mean F = 47.5
| Dec mean F = 37.7
| year mean F = 55.6
| Jan low F = 25.8
| Feb low F = 27.8
| Mar low F = 34.3
| Apr low F = 44.0
| May low F = 53.4
| Jun low F = 63.2
| Jul low F = 68.4
| Aug low F = 67.1
| Sep low F = 59.6
| Oct low F = 48.0
| Nov low F = 39.2
| Dec low F = 30.4
| year low F = 46.9
| precipitation colour = green
| Jan precipitation inch = 3.46
| Feb precipitation inch = 2.77
| Mar precipitation inch = 4.10
| Apr precipitation inch = 3.92
| May precipitation inch = 4.15
| Jun precipitation inch = 4.12
| Jul precipitation inch = 4.96
| Aug precipitation inch = 4.24
| Sep precipitation inch = 4.29
| Oct precipitation inch = 3.71
| Nov precipitation inch = 3.52
| Dec precipitation inch = 3.92
| year precipitation inch = 47.16
| humidity colour = green
| Jan humidity = 65.5
| Feb humidity = 61.6
| Mar humidity = 57.3
| Apr humidity = 57.2
| May humidity = 61.4
| Jun humidity = 63.5
| Jul humidity = 65.0
| Aug humidity = 66.9
| Sep humidity = 68.0
| Oct humidity = 67.9
| Nov humidity = 66.5
| Dec humidity = 66.6
| year humidity = 64.0
| Jan dew point F = 22.9
| Feb dew point F = 24.0
| Mar dew point F = 29.1
| Apr dew point F = 38.9
| May dew point F = 49.7
| Jun dew point F = 59.7
| Jul dew point F = 64.6
| Aug dew point F = 64.2
| Sep dew point F = 57.8
| Oct dew point F = 46.8
| Nov dew point F = 36.9
| Dec dew point F = 27.6
| year dew point F = 43.6
| source 1 = PRISM<ref name=prism>{{cite web|url=http://prism.oregonstate.edu/explorer/|title=PRISM Climate Group, Oregon State University|access-date=August 9, 2019}}</ref>
}}

==Politics==
As of May 19, 2025, there are 614,908 registered voters in Montgomery County.<ref>[https://www.pa.gov/content/dam/copapwp-pagov/en/dos/resources/voting-and-elections/voting-and-election-statistics/currentvotestats.xls Pennsylvania Department of State, Voting and Election Statistics], accessed May 19, 2025</ref>

* [[Democratic Party (United States)|Democratic]]: 301,143 (48.97%)
* [[Republican Party (United States)|Republican]]: 209,053 (34.00%)
* [[Independent (United States)|Independent]]: 77,115 (12.54%)
* [[Third party (United States)|Minor parties]]: 27,597 (4.49%)

Montgomery County historically was a stronghold for the Republican Party. The county was the only one carried by [[Barbara Hafer]] in the [[Pennsylvania gubernatorial election, 1990|1990 gubernatorial election]] over the incumbent governor, [[Robert P. Casey|Bob Casey]]. However, the Democratic Party has made substantial gains in the county over the last quarter-century and gained the registration edge early in 2008.

Like neighboring [[Bucks County, Pennsylvania|Bucks County]], the county voted Democratic during the [[American Civil War|Civil War]] era, voting Democratic between 1856 and 1876, except in 1860 and 1872. Like most of Philadelphia's suburbs, the brand of Republicanism practiced in Montgomery County for much of the 20th century was moderate. As the national parties have polarized, the county's voters have increasingly supported Democrats at the national level. The county voted for the Republican presidential nominee in all but three elections from 1880 to 1988, that being in 1892, 1912 and 1964. However, Montgomery County residents have voted for the Democratic presidential nominee since 1992, with the margins progressively increasing between every election, except in 2012. In the 2020 election, [[Joe Biden]] became the first Democrat to obtain over 60% of the county's vote.

Despite [[Donald Trump]]'s victory in the state of Pennsylvania in the [[2016 United States presidential election|2016 presidential election]], Montgomery County was one of the few counties in Pennsylvania that swung in the Democratic presidential candidates' direction with [[Hillary Clinton]] winning Montgomery County with 58.87% of the vote, an improvement from [[Barack Obama]]'s 56.6% vote share in 2012. In the 2016 U.S. Senate and Pennsylvania Attorney General elections, Montgomery County voted for [[Katie McGinty]] and [[Josh Shapiro]], both Democrats.<ref>{{Cite web|url=https://electionresults.montcopa.org/#/county?cview=sw&t=95|title=Montgomery County Election Results|website=electionresults.montcopa.org|access-date=November 25, 2016|archive-date=November 7, 2016|archive-url=https://web.archive.org/web/20161107150311/https://electionresults.montcopa.org/#/county?cview=sw&t=95|url-status=dead}}</ref>

Most county-level offices were held by Republicans until after the 2007 election, when Democrats picked up control of five row offices. Democrats have also won several elections in the [[Pennsylvania General Assembly]] in recent years, including two GOP-leaning [[Pennsylvania House of Representatives|State House]] districts in 2004, the [[Pennsylvania's 148th Representative District|148th]] with [[Michael F. Gerber|Mike Gerber]] and the [[Pennsylvania's 153rd Representative District|153rd]] with current [[Governor of Pennsylvania|Governor]] [[Josh Shapiro]]. Today, although the county is very Democratic at the national level, at the state and local level, it is not specifically partisan.

In the [[2004 United States Senate election in Pennsylvania|2004 United States Senate]] election, Republican [[Arlen Specter]] won the county over Montco resident [[Joe Hoeffel]], but Democrat [[Bob Casey, Jr.]] out-polled [[Rick Santorum]] in the 2006 Senate election. In 2006, Democrat Rick Taylor unseated incumbent Republican Eugene McGill in the [[Pennsylvania's 151st Representative District|151st]], although Taylor lost in 2010 to Republican Todd Stephens and, in 2008, Democrat Matthew Bradford unseated incumbent Republican Jay Moyer in the [[Pennsylvania's 70th Representative District|70th]]. Six of the county's 12 state house seats and four of the county's eight senate seats are now held by Democrats. All four statewide Democratic candidates carried Montgomery in 2008, with Barack Obama receiving 60% of the county's vote. Barack Obama won Montgomery County in 2008 and 2012.

{{PresHead|place=Montgomery County, Pennsylvania|source=<ref>{{cite web|url=http://uselectionatlas.org/RESULTS|title=Dave Leip's Atlas of U.S. Presidential Elections|first=David|last=Leip|website=uselectionatlas.org|access-date=November 29, 2018}}</ref>}}
<!-- PresRow should be {{PresRow|Year|Winning party|GOP vote #|Dem vote #|3rd party vote #|State}} -->
{{PresRow|2024|Democratic|198,311|317,103|7,724|Pennsylvania}}
{{PresRow|2020|Democratic|185,460|319,511|6,949|Pennsylvania}}
{{PresRow|2016|Democratic|162,731|256,082|19,839|Pennsylvania}}
{{PresRow|2012|Democratic|174,381|233,356|5,132|Pennsylvania}}
{{PresRow|2008|Democratic|165,552|253,393|3,796|Pennsylvania}}
{{PresRow|2004|Democratic|175,741|222,048|1,802|Pennsylvania}}
{{PresRow|2000|Democratic|145,623|177,990|8,809|Pennsylvania}}
{{PresRow|1996|Democratic|121,047|143,664|29,250|Pennsylvania}}
{{PresRow|1992|Democratic|125,704|136,572|56,300|Pennsylvania}}
{{PresRow|1988|Republican|170,294|109,834|2,742|Pennsylvania}}
{{PresRow|1984|Republican|181,426|99,741|1,499|Pennsylvania}}
{{PresRow|1980|Republican|156,996|84,289|30,268|Pennsylvania}}
{{PresRow|1976|Republican|155,480|112,644|5,045|Pennsylvania}}
{{PresRow|1972|Republican|173,662|91,959|4,397|Pennsylvania}}
{{PresRow|1968|Republican|141,621|102,464|16,647|Pennsylvania}}
{{PresRow|1964|Democratic|102,714|135,657|704|Pennsylvania}}
{{PresRow|1960|Republican|142,796|92,212|318|Pennsylvania}}
{{PresRow|1956|Republican|133,270|59,095|218|Pennsylvania}}
{{PresRow|1952|Republican|115,899|57,701|373|Pennsylvania}}
{{PresRow|1948|Republican|85,576|41,112|1,938|Pennsylvania}}
{{PresRow|1944|Republican|78,260|47,815|752|Pennsylvania}}
{{PresRow|1940|Republican|73,250|49,409|432|Pennsylvania}}
{{PresRow|1936|Republican|66,442|57,870|2,194|Pennsylvania}}
{{PresRow|1932|Republican|64,619|32,971|3,371|Pennsylvania}}
{{PresRow|1928|Republican|76,680|23,026|702|Pennsylvania}}
{{PresRow|1924|Republican|45,407|11,094|3,653|Pennsylvania}}
{{PresRow|1920|Republican|31,963|12,239|1,653|Pennsylvania}}
{{PresRow|1916|Republican|20,431|13,658|983|Pennsylvania}}
{{PresRow|1912|Democratic|8,978|11,894|12,760|Pennsylvania}}
{{PresRow|1908|Republican|19,088|11,899|922|Pennsylvania}}
{{PresRow|1904|Republican|18,833|10,420|843|Pennsylvania}}
{{PresRow|1900|Republican|17,051|11,208|590|Pennsylvania}}
{{PresRow|1896|Republican|17,329|9,985|980|Pennsylvania}}
{{PresRow|1892|Democratic|13,591|13,611|480|Pennsylvania}}
{{PresRow|1888|Republican|13,445|12,582|390|Pennsylvania}}
{{PresRow|1884|Republican|11,617|11,088|281|Pennsylvania}}
{{PresRow|1880|Republican|11,026|11,025|112|Pennsylvania}}
|}
{{U.S. SenHead|place=Montgomery County, Pennsylvania|Seat=1|source=<ref>{{cite news |title=2024 Senate Election (Official Returns) |website=Commonwealth of Pennsylvania by county |date=November 5, 2024 |access-date=December 5, 2024 |url=https://www.nbcnews.com/politics/2024-elections/pennsylvania-senate-results}}</ref>}}
<!-- U.S. SenRow should be {{U.S. SenRow|Year|Winning party|GOP vote #|Dem vote #|3rd party vote #|State}} -->
{{U.S. SenRow|2024|Democratic|196,422|311,859|11,687|Pennsylvania}}
{{U.S. SenFoot}}

==Government==
Montgomery County is governed by a three-person [[Montgomery County Board of Commissioners|county commission]]. The current composition is two Democrats and one Republican. By law, the county commission must have one member of a minority party represented.

===County commissioners===
{| class="wikitable"
|-
! Holder !! Party !! Position
|- {{Party shading/Democratic}}
| Neil K. Makhija|| [[Democratic Party (United States)|Democratic]] || Chair 
|- {{Party shading/Democratic}}
| Jamila H. Winder ||Democratic
|Vice Chair
|- {{Party shading/Republican}}
| Thomas DiBello || [[Republican Party (United States)|Republican]] ||
|}

===County row offices===
''As of the November 2019 election:''
{| class="wikitable"
|-
! Office !! Holder !! Party
|- {{Party shading/Democratic}}
| Clerk of Courts || Lori Schreiber || Democratic
|- {{Party shading/Democratic}}
| Controller || Karen Geld Sanchez || Democratic
|- {{Party shading/Democratic}}
| Coroner || Janine Darby || Democratic
|- {{Party shading/Democratic}}
| District Attorney || Kevin R. Steele || Democratic
|- {{Party shading/Democratic}}
| Prothonotary || Noah Marlier || Democratic
|- {{Party shading/Democratic}}
| Recorder of Deeds || Jeanne Sorg || Democratic
|- {{Party shading/Democratic}}
| Register of Wills || Tina Lawson || Democratic
|- {{Party shading/Democratic}}
| Sheriff || Sean Kilkenny || Democratic
|- {{Party shading/Democratic}}
| Treasurer|| Jason Salus || Democratic
|- {{Party shading/Democratic}}
| Jury Commissioner|| Joanne Cisco Olszewski || Democratic
|- {{Party shading/Republican}}
| Jury Commissioner|| Merry Woods || Republican
|}

====Same-sex marriage====
On July 24, 2013, Montgomery County Register of Wills [[D. Bruce Hanes]], a [[United States Democratic Party|Democrat]], announced he would begin issuing [[marriage license]]s to [[Same-sex marriage in the United States|same-sex couples]], flouting Pennsylvania law banning such unions. Hanes called the commonwealth's ban "arbitrary and suspect", saying he believes it violates the [[Pennsylvania Constitution]] and the [[United States Constitution]]. The [[United States Republican Party|Republican]] administration of Governor [[Tom Corbett]] filed suit in the [[Commonwealth Court of Pennsylvania]] in an attempt to block Hanes from licensing same-sex marriage.<ref>{{cite news|url=http://www.huffingtonpost.com/2013/08/19/pennsylvania-gay-marriage_n_3781645.html|agency=The Huffington Post|date=August 19, 2013|access-date=August 26, 2013|title=Pennsylvania Gay Marriage Law Deemed 'Suspect' By County Official}}</ref> Commonwealth Court Judge [[Dan Pellegrini]] ordered Hanes in September 2013 to stop issuing same-sex marriage licenses. After Federal Judge [[John E. Jones III|John Jones]] threw out Pennsylvania's ban on same-sex marriage in May 2014, calling it unconstitutional, offices in other counties were able to issue these licenses, while Hanes had to wait for the ruling against him to be removed.<ref>{{cite news |url=http://www.timesherald.com/article/JR/20140521/NEWS/140529964 |title=Montgomery County still unable to issue same-sex marriage licenses |newspaper=The Times Herald |date=May 21, 2014 |access-date=January 24, 2018 }}</ref>

===United States Senate===
{| class="wikitable"
|-
! Senator !! Party
|- {{Party shading/Republican}}
| [[Dave McCormick]] || [[Republican Party (United States)|Republican]]
|- {{Party shading/Democratic}}
| [[John Fetterman]] || [[Democratic Party (United States)|Democrat]]
|}

===United States House of Representatives===
[[File:Pennsylvania Congressional District 4.png|thumb|This 2018 [[United States Congress|Congressional]] map ordered by the [[Supreme Court of Pennsylvania]] places the majority of Montgomery County in the newly created [[Pennsylvania's 4th congressional district|4th congressional district]].]]
{| class="wikitable"
|-
! District !! Representative !! Party
|- {{Party shading/Republican}}
| [[Pennsylvania's 1st congressional district|1]] || [[Brian Fitzpatrick (American politician)|Brian Fitzpatrick]] || [[Republican Party (United States)|Republican]]
|- {{Party shading/Democratic}}
| [[Pennsylvania's 4th congressional district|4]] || [[Madeleine Dean]] || [[Democratic Party (United States)|Democratic]]
|- {{Party shading/Democratic}}
| [[Pennsylvania's 5th congressional district|5]] || [[Mary Gay Scanlon]] || [[Democratic Party (United States)|Democratic]]
|}

===State senate===
{| class="wikitable"
|-
! District !! Representative !! Party
|- {{Party shading/Democratic}}
| [[Pennsylvania's 4th Senatorial District|4]] || [[Art Haywood]] || [[Democratic Party (United States)|Democratic]]
|- {{Party shading/Democratic}}
| [[Pennsylvania's 7th Senatorial District|7]] || [[Vincent Hughes]] || [[Democratic Party (United States)|Democratic]]
|- {{Party shading/Democratic}}
| [[Pennsylvania's 12th Senatorial District|12]] || [[Maria Collett]] || [[Democratic Party (United States)|Democratic]]
|- {{Party shading/Democratic}}
| [[Pennsylvania's 17th Senatorial District|17]] || [[Amanda Cappelletti]] || [[Democratic Party (United States)|Democratic]]
|- {{Party shading/Republican}}
| [[Pennsylvania's 24th Senatorial District|24]] || [[Tracy Pennycuick]] || [[Republican Party (United States)|Republican]]
|- {{Party shading/Democratic}}
| [[Pennsylvania's 44th Senatorial District|44]] || [[Katie Muth]] || [[Democratic Party (United States)|Democratic]]
|}

===State House of Representatives===
{| class="wikitable"
|-
! District !! Representative !! Party
|- {{Party shading/Democratic}}
| [[Pennsylvania's 26th Representative District|26]] || [[Paul Friel]] || [[Democratic Party (United States)|Democratic]]
|- {{Party shading/Democratic}}
| [[Pennsylvania's 53rd Representative District|53]] || [[Steve Malagari]] || [[Democratic Party (United States)|Democratic]]
|- {{Party shading/Democratic}}
| [[Pennsylvania's 54th Representative District|54]] || [[Greg Scott (politician)|Greg Scott]] || [[Democratic Party (United States)|Democratic]]
|- {{Party shading/Democratic}}
| [[Pennsylvania's 61st Representative District|61]] || [[Liz Hanbidge]] || [[Democratic Party (United States)|Democratic]]
|- {{Party shading/Democratic}}
| [[Pennsylvania's 70th Representative District|70]] || [[Matthew Bradford]] || [[Democratic Party (United States)|Democratic]]
|- {{Party shading/Republican}}
| [[Pennsylvania's 131st Representative District|131]] || [[Milou Mackenzie]] || [[Republican Party (United States)|Republican]]
|- {{Party shading/Democratic}}
| [[Pennsylvania's 146th Representative District|146]] || [[Joe Ciresi]] || [[Democratic Party (United States)|Democratic]]
|- {{Party shading/Republican}}
| [[Pennsylvania's 147th Representative District|147]] || [[Donna Scheuren]] || [[Republican Party (United States)|Republican]]
|- {{Party shading/Democratic}}
| [[Pennsylvania's 148th Representative District|148]] || [[Mary Jo Daley]] || [[Democratic Party (United States)|Democratic]]
|- {{Party shading/Democratic}}
| [[Pennsylvania's 149th Representative District|149]] || [[Tim Briggs (politician)|Tim Briggs]] || [[Democratic Party (United States)|Democratic]]
|- {{Party shading/Democratic}}
| [[Pennsylvania's 150th Representative District|150]] || [[Joseph Webster (politician)|Joseph Webster]] || [[Democratic Party (United States)|Democratic]]
|- {{Party shading/Democratic}}
| [[Pennsylvania's 151st Representative District|151]] || [[Melissa Cerrato]] || [[Democratic Party (United States)|Democratic]]
|- {{Party shading/Democratic}}
| [[Pennsylvania's 152nd Representative District|152]] || [[Nancy Guenst]] || [[Democratic Party (United States)|Democratic]]
|- {{Party shading/Democratic}}
| [[Pennsylvania's 153rd Representative District|153]] || [[Ben Sanchez (politician)|Ben Sanchez]] || [[Democratic Party (United States)|Democratic]]
|- {{Party shading/Democratic}}
| [[Pennsylvania's 154th Representative District|154]] || [[Napoleon Nelson]] || [[Democratic Party (United States)|Democratic]]
|- {{Party shading/Democratic}}
| [[Pennsylvania's 157th Representative District|157]] || [[Melissa Shusterman]] || [[Democratic Party (United States)|Democratic]]
|- {{Party shading/Democratic}}
| [[Pennsylvania's 166th Representative District|166]] || [[Greg Vitali]] || [[Democratic Party (United States)|Democratic]]
|- {{Party shading/Democratic}}
| [[Pennsylvania's 172nd Representative District|172]] || [[Kevin J. Boyle]] || [[Democratic Party (United States)|Democratic]]
|- {{Party shading/Democratic}}
| [[Pennsylvania's 194th Representative District|194]] || [[Pam DeLissio]] || [[Democratic Party (United States)|Democratic]]
|}

== See also ==
{{Portal|Philadelphia|Pennsylvania}}
* [[National Register of Historic Places listings in Montgomery County, Pennsylvania]]

==References==
{{notelist}}{{reflist}}

==External links==
{{commons category|Montgomery County, Pennsylvania}}
{{wikivoyage|Montgomery County (Pennsylvania)}}
* {{official website|http://www.montcopa.org/}}
* [http://www.valleyforge.org/ Valley Forge & Montgomery County Convention & Visitors Bureau]

{{Montgomery County, Pennsylvania}}
{{Education in Montgomery County, Pennsylvania}}
{{Delaware Valley}}
{{Pennsylvania}}
{{Authority control}}

{{Coord|40.21|-75.37|display=title|type:adm2nd_region:US-PA_source:UScensus1990}}

[[Category:Montgomery County, Pennsylvania| ]]
[[Category:1784 establishments in Pennsylvania]]
[[Category:Populated places established in 1784]]