Clark County , Illinois

Clark County: County in Illinois, United States

Clark County locator map
Location of Clark County on Illinois map.

About

Clark County is a county located in the U.S. state of Illinois. As of the 2010 census, the population was 16,335 and a population density of 12 people per km². After 10 years in 2020 county had an estimated population of 15,268 inhabitants. Its county seat is Marshall. The county was created 202 years ago in 1818.

Clark County Courthouse in Marshall  southwestern angle image
Clark County Courthouse in Marshall southwestern angle
Clark County Courthouse in Marshall  southwestern angle image

Geography

Clark County is located at 39°20'1"N 87°47'16"W (39.3335700, -87.7877200). It has 7 neighbors: Coles County, Crawford County, Cumberland County, Edgar County, Jasper County, Sullivan County and Vigo County.

Clark County map

The largest city of Clark County is Marshall with a population of 3,774. Other cities include, Casey population 2,585, Farrington population 550, Orange population 517 and Melrose population 328. See all Clark County cities & populated places.

Weather

Clark County forecast: Showers and thunderstorms. Mostly cloudy, with a high near 71. South wind 6 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible. more

Clark County Quick Facts

Population : 15,268 (2020)
Country : United States of America
State : Illinois (United States)
Different from : Clark County, Clark County, Clark County, Clark County, Clark County, Clark County, Clark County, Clark County, Clark County, Clark County, Clark County
Area : 1308 km2
Water as percent of area : 0.7%
Land as percent of area : 99.3%
Named for : George Rogers Clark
Capital : Marshall
Establishment : January 01, 1819
Time Zone : America/Chicago
Local time : 13:52:13 (24th October 2021)
Density : 12 Pop. per km² as of 2020
Population growth : -6.99% (2010-2020)
Weather : 71℉ Showers And Thunderstorms 7-days weather

Clark County has 7 neighbours.

Demographics

According to census records, the population of Clark County decreased by 6.99% in 10 years.

Year Population % Change Method
2010 16,335 - census
2011 16,202 -0.82% estimation process
2012 16,259 0.35% estimation process
2013 16,095 -1.02% estimation process
2014 16,047 -0.3% estimation process
2015 15,868 -1.13% estimation process
2016 15,857 -0.07% estimation process
2017 15,812 -0.28% estimation process
2018 15,600 -1.36% estimation process
2019 15,441 -1.03% estimation process
2020 15,268 -1.13% estimation process

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People born in Clark County (3)

People born in Clark County, including politician James Harlan, geologist and geographer Zonia Baber, politician Milton W. Mathews, you can see a list of people who born in Clark County.

Other places with the same name (12)

Clark County Populated Places

Cities, Towns, Neighborhoods & Other Populated Places in Clark County.

City Name Population Title
York 124,802 Town in Clark County, Wisconsin, USA
Marshall 3,774 City in Clark County, Illinois, United States
Casey 2,585 City in Illinois
Martinsville 1,076 Township in Clark County, Illinois
Livingston 796 Village in Illinois, US
Westfield 552 Village in Westfield Township, Clark County, Illinois
Farrington 550 Unincorporated community in Illinois
Orange 517 Unincorporated community in Illinois, United States
Melrose 328 Unincorporated community in Illinois
Darwin 321 Human settlement in Illinois, United States of America

Illinois Other Counties (more counties)

County Name Population Title
Cook County 5,108,284 County in Illinois, United States
Chicago 2,677,643 City and county seat of Cook County, Illinois, United States
DuPage County 917,481 County in Illinois, United States
Lake County 693,593 County in Oregon, United States
Will County 688,726 County in Illinois, United States
Kane County 531,010 County in southern Utah, United States
Markham 328,966 City in Cook County, Illinois, United States
McHenry County 305,888 County in Illinois, United States
Winnebago County 281,295 County in Illinois, United States
Madison County 262,635 County in Montana, United States
Saint Clair County 258,046 The County of St.
Champaign County 209,192 County in Illinois, United States
Aurora 196,383 City in Kane County, Illinois, United States
Sangamon County 193,882 County in Illinois, United States
Peoria County 177,652 County in Illinois, United States of America
McLean County 171,256 County in North Dakota, United States