Familypedia
Register
Advertisement
This article is based on the corresponding article in another wiki. For Familypedia purposes, it requires significantly more historical detail on phases of this location's development. The ideal article for a place will give the reader a feel for what it was like to live at that location at the time their relatives were alive there. Also desirable are links to organizations that may be repositories of genealogical information..
Please help to improve this page yourself if you can.


Piatt County, Illinois
Piatt County Illinois Courthouse
Piatt County Courthouse in Monticello
Map of Illinois highlighting Piatt County
Location in the state of Illinois
Map of the U.S
Illinois's location in the U.S.
Founded 1841
Named for James A. Piatt
Seat Monticello
Largest city Monticello
Area
 - Total
 - Land
 - Water

439 sq mi (1,137 km²)
439 sq mi (1,137 km²)
0.3 sq mi (1 km²), 0.06
Population
 - (2020)
 - Density

16,673
Congressional district 13th
Time zone Central: UTC-6/-5
Website www.piattcounty.org

Piatt County is a county in Illinois. According to the 2020 United States Census, it had a population of 16,673.[1] Its county seat is Monticello.[2]

Piatt County is part of the ChampaignUrbana, IL Metropolitan Statistical 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.

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 439 square miles (1,140 km2), of which 439 square miles (1,140 km2) is land and 0.3 square miles (0.78 km2) (0.06%) is water.[3]

Climate and weather[]

Climate chart for Monticello, Illinois
JFMAMJJASOND
 
 
1.61
 
32
14
 
 
1.66
 
37
19
 
 
2.95
 
49
30
 
 
3.44
 
62
40
 
 
3.95
 
73
51
 
 
3.97
 
83
60
 
 
3.82
 
85
64
 
 
3.99
 
84
62
 
 
2.85
 
78
54
 
 
2.56
 
66
42
 
 
2.85
 
49
31
 
 
2.44
 
36
21
temperatures in °Cprecipitation totals in mm
source: The Weather Channel[4]

In recent years, average temperatures in the county seat of Monticello have ranged from a low of 14 °F (−10 °C) in January to a high of 85 °F (29 °C) in July, although a record low of −25 °F (−31.7 °C) was recorded in January 1999 and a record high of 105 °F (41 °C) was recorded in July 1966. Average monthly precipitation ranged from 1.61 inches (41 mm) in January to 3.99 inches (101 mm) in August.[4]

Major highways[]

  • I-72 Interstate 72
  • I-74 Interstate 74
  • US 36 U.S. Route 36
  • US 150 U.S. Route 150
  • Illinois 10 Illinois Route 10
  • Illinois 32 Illinois Route 32
  • Illinois 48 Illinois Route 48
  • Illinois 105 Illinois Route 105

Adjacent counties[]

Demographics[]

Historical populations
Census Pop.
1850 1,606
1860 6,127 281.5%
1870 10,953 78.8%
1880 15,583 42.3%
1890 17,062 9.5%
1900 17,706 3.8%
1910 16,376 −7.5%
1920 15,714 −4.0%
1930 15,588 −0.8%
1940 14,659 −6.0%
1950 13,970 −4.7%
1960 14,960 7.1%
1970 15,509 3.7%
1980 16,581 6.9%
1990 15,548 −6.2%
2000 16,365 5.3%
2010 16,729 2.2%
US Decennial Census[5]
1790-1960[6] 1900-1990[7]
1990-2000[8] 2010-2020[1]

As of the 2010 United States Census, there were 16,729 people, 6,782 households, and 4,823 families residing in the county.[9] The population density was 38.1 inhabitants per square mile (14.7 /km2). There were 7,269 housing units at an average density of 16.6 per square mile (6.4 /km2).[3] 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.[9] In terms of ancestry, 26.1% were German, 21.9% were American, 15.2% were English, and 13.4% were Irish.[10]

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.[9]

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.[11]

Communities[]

City[]

  • Monticello (seat)

Villages[]

  • Atwood (partial)
  • Bement
  • Cerro Gordo
  • Cisco
  • De Land
  • Hammond
  • Mansfield
Map of Piatt County Illinois

Map of Piatt County, Illinois

Census-designated places[]

  • La Place
  • White Heath

Other unincorporated communities[]

  • Amenia
  • Galesville
  • Lodge
  • Milmine
  • Pierson
  • Voorhies

Former places[]

  • Blue Ridge

Townships[]

  • Bement
  • Blue Ridge
  • Cerro Gordo
  • Goose Creek
  • Monticello
  • Sangamon
  • Unity
  • Willow Branch

Politics[]

United States presidential election results for Piatt County, Illinois[12]
Year Republican Democratic Third party
No.  % No.  % No.  %
2020 6,248 63.43% 3,329 33.79% 274 2.78%
2016 5,634 62.19% 2,645 29.19% 781 8.62%
2012 5,413 61.92% 3,090 35.35% 239 2.73%
2008 4,991 55.34% 3,859 42.79% 168 1.86%
2004 5,392 62.80% 3,124 36.38% 70 0.82%
2000 4,619 55.09% 3,488 41.60% 278 3.32%
1996 3,265 44.05% 3,274 44.17% 873 11.78%
1992 3,076 36.42% 3,520 41.67% 1,851 21.91%
1988 4,137 56.85% 3,099 42.59% 41 0.56%
1984 5,000 63.46% 2,840 36.05% 39 0.49%
1980 4,867 62.25% 2,421 30.97% 530 6.78%
1976 4,442 55.39% 3,509 43.75% 69 0.86%
1972 5,057 67.72% 2,394 32.06% 17 0.23%
1968 3,973 56.28% 2,447 34.66% 639 9.05%
1964 3,141 44.63% 3,897 55.37% 0 0.00%
1960 4,506 60.90% 2,889 39.05% 4 0.05%
1956 4,622 66.23% 2,356 33.76% 1 0.01%
1952 4,701 67.82% 2,220 32.03% 11 0.16%
1948 3,646 60.13% 2,361 38.93% 57 0.94%
1944 3,912 59.38% 2,641 40.09% 35 0.53%
1940 4,564 55.94% 3,564 43.68% 31 0.38%
1936 3,931 48.77% 4,084 50.66% 46 0.57%
1932 3,179 42.71% 4,200 56.43% 64 0.86%
1928 4,565 69.62% 1,959 29.88% 33 0.50%
1924 3,799 64.31% 1,733 29.34% 375 6.35%
1920 4,283 68.16% 1,903 30.28% 98 1.56%
1916 4,012 55.49% 3,028 41.88% 190 2.63%
1912 1,150 30.71% 1,417 37.84% 1,178 31.46%
1908 2,349 57.96% 1,530 37.75% 174 4.29%
1904 2,515 63.24% 1,334 33.54% 128 3.22%
1900 2,648 57.32% 1,905 41.23% 67 1.45%
1896 2,579 56.07% 1,958 42.57% 63 1.37%
1892 2,138 51.08% 1,896 45.29% 152 3.63%



See also[]

  • National Register of Historic Places listings in Piatt County

References[]

  1. ^ a b "State & County QuickFacts". US Census Bureau. http://quickfacts.census.gov/qfd/states/17/17147.html. 
  2. ^ "Find a County". National Association of Counties. http://www.naco.org/Counties/Pages/FindACounty.aspx. 
  3. ^ a b "Population, Housing Units, Area, and Density: 2010 - County". US Census Bureau. http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_SF1/GCTPH1.CY10/0500000US17147. 
  4. ^ a b "Monthly Averages for Monticello IL". The Weather Channel. http://www.weather.com/weather/wxclimatology/monthly/graph/USIL0794. 
  5. ^ "US Decennial Census". US Census Bureau. https://www.census.gov/programs-surveys/decennial-census.html. 
  6. ^ "Historical Census Browser". University of Virginia Library. http://mapserver.lib.virginia.edu. 
  7. ^ "Population of Counties by Decennial Census: 1900 to 1990". US Census Bureau. https://www.census.gov/population/cencounts/il190090.txt. 
  8. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000". US Census Bureau. https://www.census.gov/population/www/cen2000/briefs/phc-t4/tables/tab02.pdf. 
  9. ^ a b c "Profile of General Population and Housing Characteristics: 2010 Demographic Profile Data". US Census Bureau. http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_DP/DPDP1/0500000US17147. 
  10. ^ "Selected Social Characteristics in the United States – 2006-2010 American Community Survey 5-Year Estimates". US Census Bureau. http://factfinder.census.gov/bkmk/table/1.0/en/ACS/10_5YR/DP02/0500000US17147. 
  11. ^ "Selected Economic Characteristics – 2006-2010 American Community Survey 5-Year Estimates". US Census Bureau. http://factfinder.census.gov/bkmk/table/1.0/en/ACS/10_5YR/DP03/0500000US17147. 
  12. ^ Leip, David. "Atlas of US Presidential Elections". http://uselectionatlas.org/RESULTS. 

Coordinates: 40°01′N 88°35′W / 40.01, -88.59

This page uses content from the English language Wikipedia. The original content was at Piatt County, Illinois. The list of authors can be seen in the page history. As with this Familypedia wiki, the content of Wikipedia is available under the Creative Commons License.
Advertisement