Editing Piatt County, Illinois

{{Short description|County in Illinois, United States}}
{{Use mdy dates|date=April 2024}}
{{Infobox U.S. county
| county           = Piatt County
| state            = Illinois
| seal             =
|named for = James A. Piatt
| founded          = 1841
| seat wl          = Monticello
| largest city     = Monticello
| area_total_sq_mi = 439
| area_land_sq_mi  = 439
| area_water_sq_mi = 0.3
| area percentage  = 0.06
| population_as_of = 2020
| population_total = 16,673
| pop_est_as_of    = 
| population_est    = 
| population_density_sq_mi = auto
| time zone        = Central
| web              = www.piattcounty.org
| ex image         = Piatt County Illinois Courthouse.jpg
| ex image cap     = [[Piatt County Courthouse]] in Monticello
| district         = 13th
| district2        = 15th
}}

'''Piatt County''' is a [[County (United States)|county]] in  [[Illinois]]. According to the [[2020 United States census]], it had a population of 16,673.<ref name="QF">{{Cite web |title=State & County QuickFacts |url=http://quickfacts.census.gov/qfd/states/17/17147.html |url-status=dead |archive-url=https://web.archive.org/web/20110607104459/http://quickfacts.census.gov/qfd/states/17/17147.html |archive-date=June 7, 2011 |access-date=July 8, 2014 |publisher=US Census Bureau}}</ref> Its [[county seat]] is [[Monticello, Illinois|Monticello]].<ref>{{Cite web |title=Find a County |url=http://www.naco.org/Counties/Pages/FindACounty.aspx |access-date=June 7, 2011 |publisher=National Association of Counties}}</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 County, Illinois|Macon]] and [[DeWitt County, Illinois|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.
<gallery>
File:Piatt County Illinois 1841.png|Piatt County at the time of its creation in 1841
</gallery>
[[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 [[United States Census Bureau|US Census Bureau]], the county has a total area of {{convert|439|sqmi}}, of which {{convert|439|sqmi}} is land and {{convert|0.3|sqmi}} (0.06%) is water.<ref name=CD/>

===Climate and weather===
{{climate chart
|[[Monticello, Illinois]]
|14|32|1.61
|19|37|1.66
|30|49|2.95
|40|62|3.44
|51|73|3.95
|60|83|3.97
|64|85|3.82
|62|84|3.99
|54|78|2.85
|42|66|2.56
|31|49|2.85
|21|36|2.44
|float=right
|units=imperial
|clear=both
|source=The Weather Channel<ref name="WX">{{Cite web |title=Monthly Averages for Monticello IL |url=http://www.weather.com/weather/wxclimatology/monthly/graph/USIL0794 |access-date=January 27, 2011 |publisher=The Weather Channel}}</ref>}}
In recent years, average temperatures in the county seat of Monticello have ranged from a low of {{convert|14|°F}} in January to a high of {{convert|85|°F}} in July, although a record low of {{convert|-25|°F}} was recorded in January 1999 and a record high of {{convert|105|°F}} was recorded in July 1966.  Average monthly precipitation ranged from {{convert|1.61|in}} in January to {{convert|3.99|in}} in August.<ref name=WX/>

===Major highways===
{{div col|colwidth=15em}}
* [[Image:I-72.svg|20px]] [[Interstate 72]]
* [[Image:I-74.svg|20px]] [[Interstate 74 in Illinois|Interstate 74]]
* [[Image:US 36.svg|20px]] [[U.S. Route 36 in Illinois|U.S. Route 36]]
* [[Image:US 150.svg|20px]] [[U.S. Route 150 in Illinois|U.S. Route 150]]
* [[Image:Illinois 10.svg|20px]] [[Illinois Route 10]]
* [[Image:Illinois 32.svg|20px]] [[Illinois Route 32]]
* [[Image:Illinois 48.svg|20px]] [[Illinois Route 48]]
* [[Image:Illinois 105.svg|20px]] [[Illinois Route 105]]
{{div col end}}

===Adjacent counties===
{{div col}}
* [[McLean County, Illinois|McLean County]] - north
* [[Champaign County, Illinois|Champaign County]] - east
* [[Douglas County, Illinois|Douglas County]] - southeast
* [[Moultrie County, Illinois|Moultrie County]] - south
* [[Macon County, Illinois|Macon County]] - southwest
* [[De Witt County, Illinois|De Witt County]] - west
{{div col end}}

==Demographics==
{{US Census population
|1850= 1606
|1860= 6127
|1870= 10953
|1880= 15583
|1890= 17062
|1900= 17706
|1910= 16376
|1920= 15714
|1930= 15588
|1940= 14659
|1950= 13970
|1960= 14960
|1970= 15509
|1980= 16581
|1990= 15548
|2000= 16365
|2010= 16729
|2020= 16673
|estyear=2023
|estimate=16714
|estref=<ref name="USCensusEst2023">{{Cite web |title=Annual Estimates of the Resident Population for Counties: April 1, 2020 to July 1, 2023 |url=https://www.census.gov/programs-surveys/popest/data/tables.html |access-date=April 2, 2024 |publisher=United States Census Bureau}}</ref>
|align-fn=center
|footnote=US Decennial Census<ref>{{Cite web |title=US Decennial Census |url=https://www.census.gov/programs-surveys/decennial-census.html |access-date=July 8, 2014 |publisher=US Census Bureau}}</ref><br/>1790-1960<ref>{{Cite web |title=Historical Census Browser |url=http://mapserver.lib.virginia.edu |access-date=July 8, 2014 |publisher=University of Virginia Library}}</ref> 1900-1990<ref>{{Cite web |title=Population of Counties by Decennial Census: 1900 to 1990 |url=https://www.census.gov/population/cencounts/il190090.txt |access-date=July 8, 2014 |publisher=US Census Bureau}}</ref><br/>1990-2000<ref>{{Cite web |title=Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000 |url=https://www.census.gov/population/www/cen2000/briefs/phc-t4/tables/tab02.pdf |access-date=July 8, 2014 |publisher=US Census Bureau}}</ref> 2010-2013<ref name=QF/>
}}

As of the [[2010 United States Census]], there were 16,729&nbsp;people, 6,782&nbsp;households, and 4,823&nbsp;families residing in the county.<ref name="DP1">{{Cite web |title=Profile of General Population and Housing Characteristics: 2010 Demographic Profile Data |url=http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_DP/DPDP1/0500000US17147 |url-status=dead |archive-url=https://archive.today/20200213020038/http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_DP/DPDP1/0500000US17147 |archive-date=February 13, 2020 |access-date=July 12, 2015 |publisher=US Census Bureau}}</ref> The population density was {{convert|38.1|PD/sqmi}}. There were 7,269 housing units at an average density of {{convert|16.6|/sqmi}}.<ref name="CD">{{Cite web |title=Population, Housing Units, Area, and Density: 2010 - County |url=http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_SF1/GCTPH1.CY10/0500000US17147 |url-status=dead |archive-url=https://archive.today/20200212195740/http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_SF1/GCTPH1.CY10/0500000US17147 |archive-date=February 12, 2020 |access-date=July 12, 2015 |publisher=US Census Bureau}}</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 [[Germans|German]], 21.9% were [[Americans|American]], 15.2% were [[English people|English]], and 13.4% were [[Irish people|Irish]].<ref>{{Cite web |title=Selected Social Characteristics in the United States – 2006-2010 American Community Survey 5-Year Estimates |url=http://factfinder.census.gov/bkmk/table/1.0/en/ACS/10_5YR/DP02/0500000US17147 |url-status=dead |archive-url=https://archive.today/20200213034400/http://factfinder.census.gov/bkmk/table/1.0/en/ACS/10_5YR/DP02/0500000US17147 |archive-date=February 13, 2020 |access-date=July 12, 2015 |publisher=US Census Bureau}}</ref>

Of the 6,782&nbsp;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>{{Cite web |title=Selected Economic Characteristics – 2006-2010 American Community Survey 5-Year Estimates |url=http://factfinder.census.gov/bkmk/table/1.0/en/ACS/10_5YR/DP03/0500000US17147 |url-status=dead |archive-url=https://archive.today/20200213031047/http://factfinder.census.gov/bkmk/table/1.0/en/ACS/10_5YR/DP03/0500000US17147 |archive-date=February 13, 2020 |access-date=July 12, 2015 |publisher=US Census Bureau}}</ref>

==Communities==
===City===
* [[Monticello, Illinois|Monticello]] (seat)

===Villages===
{{div col|colwidth=15em}}
* [[Atwood, Illinois|Atwood]] (partial)
* [[Bement, Illinois|Bement]]
* [[Cerro Gordo, Illinois|Cerro Gordo]]
* [[Cisco, Illinois|Cisco]]
* [[De Land, Illinois|De Land]]
* [[Hammond, Illinois|Hammond]]
* [[Mansfield, Illinois|Mansfield]]
{{div col end}}
[[Image:Map of Piatt County Illinois.png|thumb|180px|Map of Piatt County, Illinois]]

===Census-designated places===
* [[La Place, Illinois|La Place]]
* [[White Heath, Illinois|White Heath]]

===Other unincorporated communities===
{{div col|colwidth=30em}}
* [[Amenia, Illinois|Amenia]]
* [[Galesville, Illinois|Galesville]]
* [[Lodge, Illinois|Lodge]]
* [[Milmine, Illinois|Milmine]]
* [[Pierson, Illinois|Pierson]]
* [[Voorhies, Illinois|Voorhies]]
{{div col end}}

===Former places===
{{div col|colwidth=15em}}
* [[Blue Ridge, Illinois|Blue Ridge]]
{{div col end}}

===Townships===
{{div col|colwidth=15em}}
* [[Bement Township, Piatt County, Illinois|Bement]]
* [[Blue Ridge Township, Piatt County, Illinois|Blue Ridge]]
* [[Cerro Gordo Township, Piatt County, Illinois|Cerro Gordo]]
* [[Goose Creek Township, Piatt County, Illinois|Goose Creek]]
* [[Monticello Township, Piatt County, Illinois|Monticello]]
* [[Sangamon Township, Piatt County, Illinois|Sangamon]]
* [[Unity Township, Piatt County, Illinois|Unity]]
* [[Willow Branch Township, Piatt County, Illinois|Willow Branch]]
{{div col end}}

==Politics==
{{PresHead|place=Piatt County, Illinois|source=<ref>{{Cite web |last=Leip |first=David |title=Atlas of US Presidential Elections |url=http://uselectionatlas.org/RESULTS |access-date=November 11, 2018 |website=uselectionatlas.org}}</ref>}}
<!-- PresRow should be {{PresRow|Year|Winning party|GOP vote #|Dem vote #|3rd party vote #|State}} -->
{{PresRow|2024|Republican|6,104|3,204|238|Illinois}}
{{PresRow|2020|Republican|6,248|3,329|274|Illinois}}
{{PresRow|2016|Republican|5,634|2,645|781|Illinois}}
{{PresRow|2012|Republican|5,413|3,090|239|Illinois}}
{{PresRow|2008|Republican|4,991|3,859|168|Illinois}}
{{PresRow|2004|Republican|5,392|3,124|70|Illinois}}
{{PresRow|2000|Republican|4,619|3,488|278|Illinois}}
{{PresRow|1996|Democratic|3,265|3,274|873|Illinois}}
{{PresRow|1992|Democratic|3,076|3,520|1,851|Illinois}}
{{PresRow|1988|Republican|4,137|3,099|41|Illinois}}
{{PresRow|1984|Republican|5,000|2,840|39|Illinois}}
{{PresRow|1980|Republican|4,867|2,421|530|Illinois}}
{{PresRow|1976|Republican|4,442|3,509|69|Illinois}}
{{PresRow|1972|Republican|5,057|2,394|17|Illinois}}
{{PresRow|1968|Republican|3,973|2,447|639|Illinois}}
{{PresRow|1964|Democratic|3,141|3,897|0|Illinois}}
{{PresRow|1960|Republican|4,506|2,889|4|Illinois}}
{{PresRow|1956|Republican|4,622|2,356|1|Illinois}}
{{PresRow|1952|Republican|4,701|2,220|11|Illinois}}
{{PresRow|1948|Republican|3,646|2,361|57|Illinois}}
{{PresRow|1944|Republican|3,912|2,641|35|Illinois}}
{{PresRow|1940|Republican|4,564|3,564|31|Illinois}}
{{PresRow|1936|Democratic|3,931|4,084|46|Illinois}}
{{PresRow|1932|Democratic|3,179|4,200|64|Illinois}}
{{PresRow|1928|Republican|4,565|1,959|33|Illinois}}
{{PresRow|1924|Republican|3,799|1,733|375|Illinois}}
{{PresRow|1920|Republican|4,283|1,903|98|Illinois}}
{{PresRow|1916|Republican|4,012|3,028|190|Illinois}}
{{PresRow|1912|Democratic|1,150|1,417|1,178|Illinois}}
{{PresRow|1908|Republican|2,349|1,530|174|Illinois}}
{{PresRow|1904|Republican|2,515|1,334|128|Illinois}}
{{PresRow|1900|Republican|2,648|1,905|67|Illinois}}
{{PresRow|1896|Republican|2,579|1,958|63|Illinois}}
{{PresFoot|1892|Republican|2,138|1,896|152|Illinois}}

==See also==
* [[National Register of Historic Places listings in Illinois#Piatt County|National Register of Historic Places listings in Piatt County]]

==References==
{{Reflist|30em}}

{{Geographic Location
|Centre    = Piatt County, Illinois
|North     = [[McLean County, Illinois|McLean County]]
|East      = [[Champaign County, Illinois|Champaign County]]
|Southeast = [[Douglas County, Illinois|Douglas County]]
|South     = [[Moultrie County, Illinois|Moultrie County]]
|Southwest = [[Macon County, Illinois|Macon County]]
|West      = [[De Witt County, Illinois|De Witt County]]
}}
{{Piatt County, Illinois}}
{{Illinois}}
{{Authority control}}
{{Coord|40.01|-88.59|display=title|type:adm2nd_region:US-IL_source:UScensus1990}}

[[Category:Piatt County, Illinois| ]]
[[Category:Illinois counties]]
[[Category:1841 establishments in Illinois]]
[[Category:Populated places established in 1841]]