Piatt County, Illinois
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Piatt County is a county in Illinois. According to the 2020 United States census, it had a population of 16,673.<ref name="QF">Template:Cite web</ref> Its county seat is Monticello.<ref>Template:Cite web</ref>
Piatt County is part of the Champaign-Urbana Metropolitan Area.
History
The first settler was George Haworth, a Quaker, followed by James Martin, Abraham Hanline, Solomon Carter and William Cordell.
Piatt County was formed in 1841 from Macon and DeWitt counties. Two local residents, James A. Piatt and Jesse Warner, were instrumental in forming the county. It was named after James A. Piatt after winning a coin flip against Jesse Warner.
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Piatt County at the time of its creation in 1841
Abraham Lincoln practiced law in Piatt County as a circuit lawyer. Lincoln and Stephen A. Douglas planned their presidential debates in Piatt County in 1858, one of which is ornamented by a marker just south of Monticello.
The first courthouse was built in 1843. It was replaced by the current courthouse in 1904.
Geography
According to the US Census Bureau, the county has a total area of Template:Convert, of which Template:Convert is land and Template:Convert (0.06%) is water.<ref name=CD/>
Climate and weather
Template:Climate chart In recent years, average temperatures in the county seat of Monticello have ranged from a low of Template:Convert in January to a high of Template:Convert in July, although a record low of Template:Convert was recorded in January 1999 and a record high of Template:Convert was recorded in July 1966. Average monthly precipitation ranged from Template:Convert in January to Template:Convert in August.<ref name=WX/>
Major highways
Interstate 72
Interstate 74
U.S. Route 36
U.S. Route 150
Illinois Route 10
Illinois Route 32
Illinois Route 48
Illinois Route 105
Adjacent counties
- McLean County - north
- Champaign County - east
- Douglas County - southeast
- Moultrie County - south
- Macon County - southwest
- De Witt County - west
Demographics
2020 census
| Race / Ethnicity (NH = Non-Hispanic) | Pop 1980<ref name=1980Census>Template:Cite web</ref> | Pop 1990<ref name=1990Census>Template:Cite web</ref> | Pop 2000<ref name=2000CensusP004>Template:Cite web</ref> | Pop 2010<ref name=2010CensusP2>Template:Cite web</ref> | Pop 2020<ref name=2020CensusP2>Template:Cite web</ref> | % 1980 | % 1990 | % 2000 | % 2010 | % 2020 |
|---|---|---|---|---|---|---|---|---|---|---|
| White alone (NH) | 16,469 | 15,478 | 16,090 | 16,276 | 15,600 | 99.32% | 99.55% | 98.32% | 97.29% | 93.56% |
| Black or African American alone (NH) | 13 | 8 | 39 | 56 | 83 | 0.08% | 0.05% | 0.24% | 0.33% | 0.50% |
| Native American or Alaska Native alone (NH) | 13 | 16 | 12 | 28 | 23 | 0.08% | 0.10% | 0.07% | 0.17% | 0.14% |
| Asian alone (NH) | 20 | 11 | 20 | 49 | 80 | 0.12% | 0.07% | 0.12% | 0.29% | 0.48% |
| Native Hawaiian or Pacific Islander alone (NH) | x <ref>included in the Asian category in the 1980 Census</ref> | x <ref>included in the Asian category in the 1990 Census</ref> | 2 | 6 | 1 | x | x | 0.01% | 0.04% | 0.01% |
| Other race alone (NH) | 2 | 0 | 10 | 12 | 51 | 0.01% | 0.00% | 0.06% | 0.07% | 0.31% |
| Mixed race or Multiracial (NH) | x <ref>not an option in the 1980 Census</ref> | x <ref>not an option in the 1990 Census</ref> | 91 | 135 | 588 | x | x | 0.56% | 0.81% | 3.53% |
| Hispanic or Latino (any race) | 64 | 35 | 101 | 167 | 247 | 0.39% | 0.23% | 0.62% | 1.00% | 1.48% |
| Total | 16,581 | 15,548 | 16,365 | 16,729 | 16,673 | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% |
2010 census
As of the 2010 United States census, there were 16,729 people, 6,782 households, and 4,823 families residing in the county.<ref name="DP1">Template:Cite web</ref> The population density was Template:Convert. There were 7,269 housing units at an average density of Template:Convert.<ref name="CD">Template:Cite web</ref> The racial makeup of the county was 98.0% white, 0.3% black or African American, 0.3% Asian, 0.2% American Indian, 0.2% from other races, and 0.9% from two or more races. Those of Hispanic or Latino origin made up 1.0% of the population.<ref name=DP1/> In terms of ancestry, 26.1% were German, 21.9% were American, 15.2% were English, and 13.4% were Irish.<ref>Template:Cite web</ref>
Of the 6,782 households, 32.0% had children under the age of 18 living with them, 59.4% were married couples living together, 8.0% had a female householder with no husband present, 28.9% were non-families, and 24.5% of all households were made up of individuals. The average household size was 2.46 and the average family size was 2.92. The median age was 42.6 years.<ref name=DP1/>
The median income for a household in the county was $55,752 and the median income for a family was $65,850. Males had a median income of $50,425 versus $32,304 for females. The per capita income for the county was $26,492. About 5.1% of families and 7.6% of the population were below the poverty line, including 10.8% of those under age 18 and 4.5% of those age 65 or over.<ref>Template:Cite web</ref>
Communities
City
- Monticello (seat)
Villages
Census-designated places
Other unincorporated communities
Former places
Townships
Politics
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See also
References
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