View source for Mercer County, Pennsylvania

{{Short description|County in Pennsylvania, United States}}
{{Use American English|date=June 2025}}
{{Use mdy dates|date=April 2024}}
{{Infobox U.S. county
 | county               = Mercer County
 | state                = Pennsylvania
 | seal                 = Seal of Mercer County, Pennsylvania.png
 | founded date         = November 7
 | founded year         = 1803
 | named for            = [[Hugh Mercer]]
 | seat wl              = Mercer
 | largest city wl      = Hermitage
 | area_total_sq_mi     = 683
 | area_land_sq_mi      = 673
 | area_water_sq_mi     = 10
 | area percentage      = 1.5%
 | census yr            = 2020
 | pop                  = 110652
 | population_footnotes = <ref name="census.gov">{{cite web |title=QuickFacts Mercer County, Pennsylvania |url=https://www.census.gov/quickfacts/fact/table/mercercountypennsylvania/PST045219 |website=Census }}</ref>
 | pop_est_as_of        = 2024
 | population_est       = 108140 {{decrease}}
 | pop_est_footnotes    = <ref name=qf>{{cite web|url=https://www.census.gov/quickfacts/fact/table/mercercountypennsylvania/PST045224|title=Mercer County, Pennsylvania|website=Census.gov|access-date= }}</ref>
 | density_sq_mi        = 160.7
 | ex image             = Mercer County Courthouse Pennsylvania 2010.jpg
 | ex image size        = 240
 | ex image cap         = Mercer County Courthouse (1909)
 | time zone            = Eastern
 | district             = 16th
|website={{URL|https://www.mercercountypa.gov/}}}}

'''Mercer County''' is a [[County (United States)|county]] in the [[Commonwealth (U.S. state)|Commonwealth]] of [[Pennsylvania]]. As of the [[2020 United States census|2020 census]], the population was 110,652.<ref name="census.gov">{{cite web |title=QuickFacts Mercer County, Pennsylvania |url=https://www.census.gov/quickfacts/fact/table/mercercountypennsylvania/PST045219 |website=Census }}</ref> Its [[county seat]] is [[Mercer, Pennsylvania|Mercer]],<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> and its largest city is [[Hermitage, Pennsylvania|Hermitage]]. The county is part of the Northwest Pennsylvania region of the state.{{efn|Includes Erie, Mercer, Crawford and Venango Counties}}

Mercer County compromises the [[Micropolitan statistical area|Hermitage, PA Micropolitan Statistical Area]], which is included in the [[Greater Pittsburgh]] area.

==History==
Mercer County was created in 1800 and later organized in 1803.<ref>{{cite web|url=http://publications.newberry.org/ahcbp/documents/PA_Individual_County_Chronologies.htm|title=Pennsylvania: Individual County Chronologies|publisher=The Newberry Library|website=Pennsylvania Atlas of Historical County Boundaries|date=2008|access-date=March 13, 2015|archive-date=March 25, 2015|archive-url=https://web.archive.org/web/20150325044238/http://publications.newberry.org/ahcbp/documents/PA_Individual_County_Chronologies.htm|url-status=dead}}</ref>

==Geography==
According to the [[United States Census Bureau|U.S. Census Bureau]], the county has a total area of {{convert|683|sqmi}}, of which {{convert|673|sqmi}} is land and {{convert|10|sqmi}} (1.5%) is 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> It has a [[humid continental climate]] (''Dfa''/''Dfb'') and average monthly temperatures in Sharon range from 27.1&nbsp;°F in January to 72.2&nbsp;°F in July, while in Mercer borough they range from 25.4&nbsp;°F in January to 70.1&nbsp;°F in July.<ref>{{cite web | url=http://prism.oregonstate.edu/explorer/ | title=PRISM Climate Group at Oregon State University }}</ref> Mercer County is one of the 423 counties served by the [[Appalachian Regional Commission]],<ref name="ARC">{{cite web |title=About the Appalachian Region |url=https://www.arc.gov/about-the-appalachian-region/ |publisher=Appalachian Regional Commission |access-date=23 June 2024}}</ref> and it is identified as part of the "Midlands" by Colin Woodard in his book ''[[American Nations|American Nations: A History of the Eleven Rival Regional Cultures of North America]]''.<ref name="NYT_CW">{{cite web |last1=Woodard |first1=Colin |title=The Maps That Show That City vs. Country Is Not Our Political Fault Line |url=https://www.nytimes.com/2018/07/30/opinion/urban-rural-united-states-regions-midterms.html |publisher=New York Times |access-date=30 July 2018}}</ref>

===Adjacent counties===
*[[Crawford County, Pennsylvania|Crawford County]] (north)
*[[Venango County, Pennsylvania|Venango County]] (east)
*[[Butler County, Pennsylvania|Butler County]] (southeast)
*[[Lawrence County, Pennsylvania|Lawrence County]] (south)
*[[Mahoning County, Ohio]] (southwest)
*[[Trumbull County, Ohio]] (west)

===Major highways===
{{div col|colwidth=30em}}
*{{jct|state=PA|I|79}}
*{{jct|state=PA|I|80}}
*{{jct|state=PA|I|376}}
*{{jct|state=PA|US|19}}
*{{jct|state=PA|US|62}}
*{{jct|state=PA|US|322}}
*{{jct|state=PA|PA|18}}
*{{jct|state=PA|PA|58}}
*{{jct|state=PA|PA|158}}
*{{jct|state=PA|PA|173}}
*{{jct|state=PA|PA|208}}
*{{jct|state=PA|PA|258}}
*{{jct|state=PA|PA|318}}
*{{jct|state=PA|PA|358}}
*{{jct|state=PA|PA|418}}
*{{jct|state=PA|PA|518}}
*{{jct|state=PA|PA|718}}
*{{jct|state=PA|PA|760}}
*{{jct|state=PA|PA|846}}
*{{jct|state=PA|PA|965}}
{{div col end}}

==Demographics==
{{US Census population
|1800= 3228
|1810= 8277
|1820= 11681
|1830= 19729
|1840= 32873
|1850= 33172
|1860= 36856
|1870= 49977
|1880= 56161
|1890= 55744
|1900= 57387
|1910= 77699
|1920= 93788
|1930= 99246
|1940= 101039
|1950= 111954
|1960= 127519
|1970= 127175
|1980= 128299
|1990= 121003
|2000= 120307
|2010= 116638
|2020= 110652
|estyear=2024
|estimate=108140
|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 |archive-url=https://ghostarchive.org/archive/20221009/https://www.census.gov/population/www/cen2000/briefs/phc-t4/tables/tab02.pdf |archive-date=October 9, 2022 |url-status=live|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> 2010–2019<ref name="census.gov">{{cite web |title=QuickFacts Mercer County, Pennsylvania |url=https://www.census.gov/quickfacts/fact/table/mercercountypennsylvania/PST045219 |website=Census }}</ref> 2020<ref name="census.gov">{{cite web |title=QuickFacts Mercer County, Pennsylvania |url=https://www.census.gov/quickfacts/fact/table/mercercountypennsylvania/PST045219 |website=Census }}</ref> 2024<ref name=qf/>
}}

As of the [[census]]<ref name="GR2">{{cite web|url=https://www.census.gov |publisher=[[United States Census Bureau]] |access-date=January 31, 2008 |title=U.S. Census website }}</ref> of 2000, there were 120,293 people, 46,712 households, and 32,371 families residing in the county. The population density was {{convert|179|/mi2|/km2|disp=preunit|inhabitants&nbsp;|inhabitants|}}. There were 49,859 housing units at an average density of {{convert|74|/mi2|/km2|adj=pre|units&nbsp;}}. The racial makeup of the county was 93.13% [[Race (United States Census)|White]], 5.25% [[Race (United States Census)|Black]] or [[Race (United States Census)|African American]], 0.11% [[Race (United States Census)|Native American]], 0.40% [[Race (United States Census)|Asian]], 0.02% [[Race (United States Census)|Pacific Islander]], 0.17% from [[Race (United States Census)|other races]], and 0.91% from two or more races. 0.67% of the population were [[Race (United States Census)|Hispanic]] or [[Race (United States Census)|Latino]] of any race. 37.7% were of [[German American|German]], 20.0% [[Irish American|Irish]], 14.9% [[Italian American|Italian]], 12.0% [[English American|English]], 6.4% [[American people|American]], 6.2% [[Polish American|Polish]], 3.7% [[Scotch-Irish American|Scotch-Irish]], 3.3% [[Dutch American|Dutch]] ancestry.

There were 46,712 households, out of which 29.30% had children under the age of 18 living with them, 54.80% were [[Marriage|married couples]] living together, 10.90% had a female householder with no husband present, and 30.70% were non-families. 27.00% of all households were made up of individuals, and 13.20% had someone living alone who was 65 years of age or older. The average household size was 2.44 and the average family size was 2.96.

In the county, the population was spread out, with 23.40% under the age of 18, 8.90% from 18 to 24, 26.10% from 25 to 44, 23.50% from 45 to 64, and 18.10% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 94.70 males. For every 100 females age 18 and over, there were 90.80 males.

===2020 census===
{| class="wikitable"
|+Mercer 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) – Mercer County, Pennsylvania|url=https://data.census.gov/cedsci/table?q=Mercer%20County,%20Pennsylvania&t=Race%20and%20Ethnicity&tid=DECENNIALPL2020.P2}}</ref>
!Race
!Num.
!Perc.
|-
|[[White (U.S. Census)|White]] (NH)
|96,998
|87.6%
|-
|[[African American (U.S. census)|Black or African American]] (NH)
|6,289
|5.7%
|-
|[[Native American (U.S. Census)|Native American]] (NH)
|116
|0.1%
|-
|[[Asian (U.S. Census)|Asian]] (NH)
|683
|0.6%
|-
|[[Pacific Islander (U.S. Census)|Pacific Islander]] (NH)
|14
|0.01%
|-
|[[Race (United States Census)|Other/Mixed]] (NH)
|4,943
|4.5%
|-
|[[Hispanic (U.S. Census)|Hispanic]] or [[Latino (U.S. Census)|Latino]]
|1,609
|1.5%
|}

==Government and politics==
{{PresHead|place=Mercer County, Pennsylvania|whig=no|source1=<ref>{{Cite web|url=http://uselectionatlas.org/RESULTS|title=Dave Leip's Atlas of U.S. Presidential Elections|last=Leip|first=David|website=uselectionatlas.org|access-date=March 23, 2018}}</ref>|source2=<ref>{{Cite web|url=https://www.ourcampaigns.com/PresidentList.html|title=Our Campaigns – U.S. President|access-date=January 22, 2021}}</ref>}}
<!-- PresRow should be {{PresRow|Year|Winning party|GOP/Whig vote #|Dem vote #|3rd party vote #|State}} -->
{{PresRow|2024|Republican|37,761|20,145|685|Pennsylvania}}
{{PresRow|2020|Republican|36,143|21,067|907|Pennsylvania}}
{{PresRow|2016|Republican|31,544|18,733|2,562|Pennsylvania}}
{{PresRow|2012|Republican|25,925|24,232|882|Pennsylvania}}
{{PresRow|2008|Republican|26,565|26,411|1,192|Pennsylvania}}
{{PresRow|2004|Republican|26,311|24,831|422|Pennsylvania}}
{{PresRow|2000|Democratic|23,132|23,817|1,783|Pennsylvania}}
{{PresRow|1996|Democratic|17,213|23,003|5,563|Pennsylvania}}
{{PresRow|1992|Democratic|16,081|23,264|10,491|Pennsylvania}}
{{PresRow|1988|Democratic|21,301|24,278|301|Pennsylvania}}
{{PresRow|1984|Democratic|24,211|24,658|434|Pennsylvania}}
{{PresRow|1980|Republican|22,372|19,716|4,002|Pennsylvania}}
{{PresRow|1976|Democratic|22,469|25,041|725|Pennsylvania}}
{{PresRow|1972|Republican|27,961|18,087|1,052|Pennsylvania}}
{{PresRow|1968|Republican|23,131|22,814|3,160|Pennsylvania}}
{{PresRow|1964|Democratic|18,153|32,199|211|Pennsylvania}}
{{PresRow|1960|Republican|29,109|24,243|128|Pennsylvania}}
{{PresRow|1956|Republican|28,785|19,769|120|Pennsylvania}}
{{PresRow|1952|Republican|26,424|20,770|343|Pennsylvania}}
{{PresRow|1948|Republican|18,916|16,108|862|Pennsylvania}}
{{PresRow|1944|Republican|19,606|16,589|212|Pennsylvania}}
{{PresRow|1940|Republican|21,058|16,968|189|Pennsylvania}}
{{PresRow|1936|Democratic|18,493|20,879|939|Pennsylvania}}
{{PresRow|1932|Republican|14,057|10,961|1,240|Pennsylvania}}
{{PresRow|1928|Republican|22,599|8,204|280|Pennsylvania}}
{{PresRow|1924|Republican|14,639|3,688|4,093|Pennsylvania}}
{{PresRow|1920|Republican|11,575|4,823|2,801|Pennsylvania}}
{{PresRow|1916|Democratic|5,866|6,390|1,495|Pennsylvania}}
{{PresRow|1912|Progressive|1,873|4,039|6,806|Pennsylvania}}
{{PresRow|1908|Republican|6,497|5,473|1,774|Pennsylvania}}
{{PresRow|1904|Republican|8,574|3,845|1,714|Pennsylvania}}
{{PresRow|1900|Republican|6,950|4,916|559|Pennsylvania}}
{{PresRow|1896|Republican|7,262|5,500|315|Pennsylvania}}
{{PresRow|1892|Republican|5,874|4,931|757|Pennsylvania}}
{{PresRow|1888|Republican|6,428|4,806|689|Pennsylvania}}
{{PresRow|1884|Republican|6,357|4,861|1,052|Pennsylvania}}
{{PresRow|1880|Republican|6,079|5,029|735|Pennsylvania}}
|}
{{U.S. SenHead|place=Mercer 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|Republican|36,468|20,302|1,318|Pennsylvania}}
{{U.S. SenFoot}}

===Voter registration===
As of June 12, 2023, there are 70,553 registered voters in the county. Republicans hold a plurality of voters by a margin of 10,354 voters (14.67% of the total registered). There are 35,735 registered [[Republican Party (United States)|Republicans]], 25,381 registered [[Democratic Party (United States)|Democrats]], 7,319 registered [[Independent (United States)|non-affiliated]] voters, and 2,118 voters registered to [[Third party (United States)|third parties]].<ref>{{cite web |author1=Pennsylvania Department of State |author1-link=Pennsylvania Department of State |date=June 12, 2023 |title=Voter registration statistics by county |url=https://www.dos.pa.gov/VotingElections/OtherServicesEvents/VotingElectionStatistics/Documents/currentvotestats.xls |archive-url= |archive-date= |access-date=June 14, 2023}}</ref>

{{Pie chart
| thumb = left
| caption = Chart of Voter Registration
| label1 = [[Republican Party (United States)|Republican]]
| value1 = 50.65
| color1 ={{party color|Republican Party (United States)}}
| label2 = [[Democratic Party (United States)|Democratic]]
| value2 = 35.97
| color2 = {{party color|Democratic Party (United States)}}
| label3 = [[Independent (United States)|Independent]]
| value3 = 10.37
| color3 = {{party color|Independent (United States)}}
| label4 = [[Third party (United States)|Third Party]]
| value4 = 3.01
| color4 = {{party color|Green Party (United States)}}
}}

{| class="wikitable float"
! colspan = 6 | Voter registration and party enrollment 
|-
! colspan = 2 | Party
! Number of voters
! Percentage
|-
| {{party color cell|Republican Party (United States)}}
| [[Republican Party (United States)|Republican]]
| style="text-align:center;"| 35,735
| style="text-align:center;"| 50.65
|-
| {{party color cell|Democratic Party (United States)}}
| [[Democratic Party (United States)|Democratic]]
| style="text-align:center;"| 25,381
| style="text-align:center;"| 35.97
|-
| {{party color cell|Independent (United States)}}
| [[Independent (United States)|Independent]]
| style="text-align:center;" | 7,319
| style="text-align:center;" | 10.37
|-
| {{party color cell|Green Party (United States)}}
| [[Third party (United States)|Third Party]]
| style="text-align:center;"| 2,118
| style="text-align:center;"| 3.01
|-
! colspan="2" | Total
! style="text-align:center;" | 70,553
! style="text-align:center;" | 100%
|}

===Political bellwether===
Mercer County was previously considered a political bellwether for the state of Pennsylvania since its demographics, urban-rural ratio, and party affiliation once closely mirrored the state as a whole. In [[2000 United States presidential election in Pennsylvania|2000]], [[Al Gore]] carried it against [[George W. Bush]]. This trend failed to hold true in [[2004 United States presidential election in Pennsylvania|2004]] and [[2008 United States presidential election|2008]], in which Mercer County voted more conservatively than the rest of the state. In 2004, Bush won Mercer County with 51% of the vote. That year, [[John Kerry]] won the state as a whole with 51% of the popular vote. In 2008, [[John McCain]] won Mercer County by fewer than 200 votes, as he and [[Barack Obama]] each received roughly 49% of the popular vote. Obama won Pennsylvania as a whole with 55% of the popular vote. Each of the three statewide office winners also carried Mercer in 2008. In [[2016 United States presidential election in Pennsylvania|2016]], [[Donald Trump]] won Mercer County by 12,403 votes, and he also won all of Pennsylvania. Each of the three Republican candidates for statewide office carried Mercer County in 2016. In [[2020 United States presidential election in Pennsylvania|2020]], Trump again carried the county, despite Pennsylvania narrowly voting for [[Joe Biden]]. Trump won 62% of the vote, the largest majority for any major party candidate since [[1964 United States presidential election in Pennsylvania|1964]], and the largest majority for a Republican since [[1928 United States presidential election in Pennsylvania|1928]].{{citation needed|date=January 2017}}. In [[2024 United States presidential election in Pennsylvania|2024]], Trump won the county for a third time, receiving 64.45% of the vote, and breaking the record set in the last election.

===County officials===
{| class="wikitable"
|-
! Commissioner !! Party !! Title
|-{{Party shading/Republican}}
| Ann Coleman || Republican || Chairman
|-{{Party shading/Republican}}
| William A Finley, Jr. || Republican || Vice Chairman
|-{{Party shading/Democratic}}
| Timothy McGonigle || Democrat || Secretary 
|- 
|}

{| class="wikitable"
|-
! Office !! Official !! Party
|-{{Party shading/Republican}}
| President Judge of Court of Common Pleas || Daniel P. Wallace || Republican
|-{{Party shading/Republican}}
| Judge of Court of Common Pleas || D. Neil McEwen || Republican
|-{{Party shading/Republican}}
| Judge of Court of Common Pleas || Tedd C. Nesbit || Republican
|-{{Party shading/Republican}}
| Judge of Court of Common Pleas || Ronald D. Amrhein Jr. || Republican
|-{{Party shading/Republican}}
| Clerk of Courts/Register of Wills || Mary Jo Basilone DePreta || Republican
|-{{Party shading/Republican}}
| District Attorney || Pete Acker || Republican
|-{{Party shading/Republican}}
| Coroner || John A. Libonati || Republican
|-{{Party shading/Republican}}
| Sheriff || Bruce Rosa || Republican
|-{{Party shading/Republican}}
| Treasurer || Amber White || Republican
|-{{Party shading/Republican}}
| Prothonotary || Ruth Bice || Republican
|-{{Party shading/Republican}}
| Recorder of Deeds || Dee Dee Zickar || Republican
|-{{Party shading/Republican}}
| Controller || Steve Sherman || Republican
|}

===State House of Representatives===
{| class="wikitable"
|-
! District !! Representative !! Party
|-{{Party shading/Republican}}
| 7 || [[Parke Wentling]] || [[Republican Party (United States)|Republican]]
|-{{Party shading/Republican}}
| 17 || [[Timothy R. Bonner]] || [[Republican Party (United States)|Republican]]
|}

===State Senate===
{|class="wikitable"
|-
!District !! Senator !! Party
|-{{Party shading/Republican}}
|[[Pennsylvania's 50th Senatorial District|50]] || [[Michele Brooks]] || [[Republican Party (United States)|Republican]]
|}

===United States House of Representatives===
{|class="wikitable"
|-
!District !! Representative !! Party
|-{{Party shading/Republican}}
|[[Pennsylvania's 16th congressional district|16]] || [[Mike Kelly (Pennsylvania)|Mike Kelly]] || [[Republican Party (United States)|Republican]]
|}

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

==Education==

===Higher education===
* [[Grove City College]] (Grove City)
* [[Thiel College]] (Greenville)
* [[Pennsylvania State University]], [[Penn State Shenango|Shenango Campus]] (Sharon)
* [[Butler County Community College]], [[BC3 @ Linden Pointe]] (Hermitage)

===Career-based education===
* [[Laurel Technical Institute]], Sharon
* [[Mercer County Career and Technical Center]], Mercer
* [[Penn State Cosmetology Academy]], Hermitage
* [[Sharon Regional Health System Schools of Nursing and Radiology]], Sharon

===Public school districts===
[[File:Map of Mercer County Pennsylvania School Districts.png|thumb|300 px|Map of Mercer County, Pennsylvania Public School Districts]]

* [[Crawford Central School District]]
* [[Commodore Perry School District]]
* [[Farrell Area School District]]
* [[Greenville Area School District]]
* [[Grove City Area School District]]
* [[Hermitage School District (Pennsylvania)|Hermitage School District]]
* [[Jamestown Area School District]]
* [[Lakeview School District (Mercer County, Pennsylvania)|Lakeview School District]]
* [[Mercer Area School District]]
* [[Reynolds School District (Pennsylvania)|Reynolds School District]]
* [[Sharon City School District]]
* [[Sharpsville Area School District]]
* [[West Middlesex Area School District]]
* [[Wilmington Area School District]]

===Charter schools===
*Keystone Education Center Charter School,<ref>{{cite web |url=http://www.portal.state.pa.us/portal/server.pt/community/charter_schools/7356 |title=Charter Schools |author=Pennsylvania Department of Education |year=2011}}</ref> Greenville, PA. 256 pupils grades 7–12 Report Card 2010.<ref>[http://paayp.emetric.net/Content/reportcards/RC10S104432830000007506.PDF]{{dead link|date=July 2013}}</ref>

===Private schools===
* [[Kennedy Catholic High School (Hermitage, Pennsylvania)|Kennedy Catholic High School]], Hermitage, PA.
* Hermitage Christian Academy, Hermitage, PA

==Recreation==
There is one [[List of Pennsylvania state parks|Pennsylvania state park]] in Mercer County. [[Maurice K. Goddard State Park]], named for [[Maurice K. Goddard]], former Secretary of the Pennsylvania Department of Environmental Resources, is just off exit 130 of [[Interstate 79]] on [[Pennsylvania Route 358]] near [[Stoneboro, Pennsylvania|Stoneboro]].

The [[Wendell August Forge]], the last remaining working [[forge]] in the state, was open to the public for tours, but it burned down on March 6, 2010.<ref>[http://www.post-gazette.com/pg/10065/1040858-100.stm#ixzz0hSr2p5ag "Landmark metal forge burns in Mercer County." ''Pittsburgh Post-Gazette''. Online. March 06, 2010.]</ref> It has since reopened in new facilities.

Mercer County Court House built in 1909.

==Communities==
[[File:Map of Mercer County Pennsylvania With Municipal and Township Labels.png|right|thumb|275px|Map of Mercer County, Pennsylvania with Municipal Labels showing Cities and Boroughs (red) and Townships (white)]]

Under Pennsylvania law, there are four types of incorporated municipalities: [[List of cities in Pennsylvania|cities]], [[List of towns and boroughs in Pennsylvania|boroughs]], [[List of townships in Pennsylvania|townships]], and, in one case, [[List of towns and boroughs in Pennsylvania#Towns|towns]]. The following cities, boroughs and townships are located in Mercer County:

===Cities===
*[[Farrell, Pennsylvania|Farrell]]
*[[Hermitage, Pennsylvania|Hermitage]] (largest city in Mercer County)
*[[Sharon, Pennsylvania|Sharon]]

===Boroughs===
{{div col|colwidth=22em}}
*[[Clark, Pennsylvania|Clark]]
*[[Fredonia, Pennsylvania|Fredonia]]
*[[Greenville, Pennsylvania|Greenville]]
*[[Grove City, Pennsylvania|Grove City]]
*[[Jackson Center, Pennsylvania|Jackson Center]]
*[[Jamestown, Pennsylvania|Jamestown]]
*[[Mercer, Pennsylvania|Mercer]] (county seat)
*[[New Lebanon, Pennsylvania|New Lebanon]]
*[[Sandy Lake, Pennsylvania|Sandy Lake]]
*[[Sharpsville, Pennsylvania|Sharpsville]]
*[[Sheakleyville, Pennsylvania|Sheakleyville]]
*[[Stoneboro, Pennsylvania|Stoneboro]]
*[[West Middlesex, Pennsylvania|West Middlesex]]
{{div col end}}

===Townships===
{{div col|colwidth=12em}}
*[[Coolspring Township, Mercer County, Pennsylvania|Coolspring]]
*[[Deer Creek Township, Mercer County, Pennsylvania|Deer Creek]]
*[[Delaware Township, Mercer County, Pennsylvania|Delaware]]
*[[East Lackawannock Township, Mercer County, Pennsylvania|East Lackawannock]]
*[[Fairview Township, Mercer County, Pennsylvania|Fairview]]
*[[Findley Township, Mercer County, Pennsylvania|Findley]]
*[[French Creek Township, Mercer County, Pennsylvania|French Creek]]
*[[Greene Township, Mercer County, Pennsylvania|Greene]]
*[[Hempfield Township, Mercer County, Pennsylvania|Hempfield]]
*[[Jackson Township, Mercer County, Pennsylvania|Jackson]]
*[[Jefferson Township, Mercer County, Pennsylvania|Jefferson]]
*[[Lackawannock Township, Mercer County, Pennsylvania|Lackawannock]]
*[[Lake Township, Mercer County, Pennsylvania|Lake]]
*[[Liberty Township, Mercer County, Pennsylvania|Liberty]]
*[[Mill Creek Township, Mercer County, Pennsylvania|Mill Creek]]
*[[New Vernon Township, Pennsylvania|New Vernon]]
*[[Otter Creek Township, Pennsylvania|Otter Creek]]
*[[Perry Township, Mercer County, Pennsylvania|Perry]]
*[[Pine Township, Mercer County, Pennsylvania|Pine]]
*[[Pymatuning Township, Pennsylvania|Pymatuning]]
*[[Salem Township, Mercer County, Pennsylvania|Salem]]
*[[Sandy Creek Township, Mercer County, Pennsylvania|Sandy Creek]]
*[[Sandy Lake Township, Mercer County, Pennsylvania|Sandy Lake]]
*[[Shenango Township, Mercer County, Pennsylvania|Shenango]]
*[[South Pymatuning Township, Pennsylvania|South Pymatuning]]
*[[Springfield Township, Mercer County, Pennsylvania|Springfield]]
*[[Sugar Grove Township, Mercer County, Pennsylvania|Sugar Grove]]
*[[West Salem Township, Pennsylvania|West Salem]]
*[[Wilmington Township, Mercer County, Pennsylvania|Wilmington]]
*[[Wolf Creek Township, Pennsylvania|Wolf Creek]]
*[[Worth Township, Mercer County, Pennsylvania|Worth]]
{{div col end}}

===Census-designated places===
*[[Lake Latonka, Pennsylvania|Lake Latonka]]
*[[Reynolds Heights, Pennsylvania|Reynolds Heights]]

===Unincorporated communities===
*Blacktown
*[[Briscoe Springs, Pennsylvania|Briscoe Springs]]
*[[Carlton, Pennsylvania|Carlton]]
* Charleston
*[[Clarks Mills, Pennsylvania|Clarks Mills]]
* Delaware Grove
*[[Fairview (village)]]
*[[Hadley, Pennsylvania|Hadley]]
*[[Kennard, Pennsylvania|Kennard]]
*Kremis
*London
*Maysville
*[[Milledgeville, Pennsylvania|Milledgeville]]
* New Vernon
* North Liberty
* Oniontown
*[[Osgood, Pennsylvania|Osgood]]
*[[Petersburg, Mercer County, Pennsylvania|Petersburg]]
*[[Shenango (village)]]
*[[Transfer, Pennsylvania|Transfer]]
*[[Williams Corners]]

===Former communities===
*[[Hickory Township, Mercer County, Pennsylvania|Hickory Township]], which became the Municipality of Hermitage in 1976, and then the City of Hermitage in 1984.<ref>{{cite web|url=http://www.rootsweb.ancestry.com/~pamercer/PA/PL/ts/Hickory/hickory.htm|title=RootsWeb.com Home Page|website=www.rootsweb.ancestry.com}}</ref>
*[[Mahoning Township, Lawrence County, Pennsylvania|Mahoning Township]], was part of Mercer County from 1806 until 1849, when Lawrence County was created.
*[[Neshannock Township, Pennsylvania|Neshannock Township]], was part of Mercer County from the county's creation in 1803 until 1849, when Lawrence County was created.
*[[New Castle, Pennsylvania|New Castle Borough]], which was part of Mercer County from 1825 until 1849, when it joined Lawrence County and became its county seat.
*[[Pulaski Township, Lawrence County, Pennsylvania|Pulaski Township]], which was part of Mercer County from 1846 until 1849, when Lawrence County was created.
*[[Wheatland, Pennsylvania|Wheatland]], which was annexed by the City of Hermitage in 2024.<ref>{{cite web |last1=Dye |first1=David L. |title=That's a wrap: Wheatland Borough Council meets for final time |url=https://www.sharonherald.com/news/thats-a-wrap-wheatland-borough-council-meets-for-final-time/article_d5ef0c6c-994c-11ee-8466-63e9f4569e2d.html |access-date=2 May 2024 |website=[[The Herald (Sharon)|The Herald]]}}</ref>

=== Mixed Nomenclature ===

* Borough of Greenville, is interchangeably designated as Town of Greenville with exact municipal designation currently unclear.

===Population ranking===
The population ranking of the following table is based on the [[2010 United States census|2010 census]] and [[2020 United States census|2020 census]] of Mercer County.<ref>{{Cite web|url=https://www.census.gov/programs-surveys/decennial-census/decade.2010.html|title=US Census Bureau 2010 Census|last=Promotions|first=Center for New Media and|website=www.census.gov|language=EN-US|access-date=March 23, 2018}}</ref>

'''†''' ''county seat''

{| class="wikitable sortable"
|-
!Rank
!City/Town/etc.
!Municipal type
!Population <br>(2010 Census)
!Population <br>(2020 Census)
|- style="background-color:#FFFACD;"
| 1
| '''[[Hermitage, Pennsylvania|Hermitage]]'''
| City
| 16,413
| 16,231
|- style="background-color:#FFFACD;"
| 2
| '''[[Sharon, Pennsylvania|Sharon]]'''
| City
| 14,021
| 13,150
|- style="background-color:#FFF5EE;"
| 3
| '''[[Grove City, Pennsylvania|Grove City]]'''
| Borough
| 8,334
| 7,884
|- style="background-color:#FFF5EE;"
| 4
| '''[[Greenville, Pennsylvania|Greenville]]'''
| Borough
| 5,953
| 5,540
|- style="background-color:#FFFACD;"
| 5
| '''[[Farrell, Pennsylvania|Farrell]]'''
| City
| 4,953
| 4,259
|- style="background-color:#FFF5EE;"
| 6
| '''[[Sharpsville, Pennsylvania|Sharpsville]]'''
| Borough
| 4,417
| 4,252
|- style="background-color:#FFF5EE;"
| 7
| '''†''' '''[[Mercer, Pennsylvania|Mercer]]'''
| Borough
| 2,042
| 1,985
|- style="background-color:#F0FFF0;"
| 8
| '''[[Reynolds Heights, Pennsylvania|Reynolds Heights]]'''
| CDP
| 2,061
| 1,974
|- style="background-color:#F0FFF0;"
| 9
| '''[[Lake Latonka, Pennsylvania|Lake Latonka]]'''
| CDP
| 1,012
| 951
|- style="background-color:#FFF5EE;"
| 10
| '''[[Stoneboro, Pennsylvania|Stoneboro]]'''
| Borough
| 1,051
| 947
|- style="background-color:#FFF5EE;"
| 11
| '''[[West Middlesex, Pennsylvania|West Middlesex]]'''
| Borough
| 863
| 816
|- style="background-color:#FFF5EE;"
| 12
| '''[[Sandy Lake, Pennsylvania|Sandy Lake]]'''
| Borough
| 657
| 650
|- style="background-color:#FFF5EE;"
| 13
| '''[[Wheatland, Pennsylvania|Wheatland]]'''
| Borough
| 632
| 583
|- style="background-color:#FFF5EE;"
| 14
| '''[[Jamestown, Pennsylvania|Jamestown]]'''
| Borough
| 617
| 582
|- style="background-color:#FFF5EE;"
| 15
| '''[[Clark, Pennsylvania|Clark]]'''
| Borough
| 640
| 575
|- style="background-color:#FFF5EE;"
| 16
| '''[[Fredonia, Pennsylvania|Fredonia]]'''
| Borough
| 494
| 435
|- style="background-color:#FFF5EE;"
| 17
| '''[[Jackson Center, Pennsylvania|Jackson Center]]'''
| Borough
| 224
| 191
|- style="background-color:#FFF5EE;"
| 18
| '''[[New Lebanon, Pennsylvania|New Lebanon]]'''
| Borough
| 189
| 185
|- style="background-color:#FFF5EE;"
| 19
| '''[[Sheakleyville, Pennsylvania|Sheakleyville]]'''
| Borough
| 142
| 150
|}

==See also==
* [[National Register of Historic Places listings in Mercer County, Pennsylvania]]

==References==
{{Notelist}}{{Reflist}}

==External links==
* Government – {{URL|https://www.mercercountypa.gov/}}

{{Mercer County, Pennsylvania}}
{{Pennsylvania}}
{{Authority control}}
{{Coord|41.31|-80.25|display=title|type:adm2nd_region:US-PA_source:UScensus1990}}

[[Category:Mercer County, Pennsylvania| ]]