Where is Clark County, Illinois?

location of Clark county on a map — Location of Clark County within the state of Illinois

Clark County is a county equivalent area found in Illinois, USA. The county government of Clark is found in the county seat of Marshall.

With a total 1,307.47 sq. km of land and water area, Clark County, Illinois is the 2162nd largest county equivalent area in the United States. Home to 16,180 people, Clark County has a total 7699 households earning 47405 on average per year.

Clark County, Illinois - Quick Facts

FIPS Code	17023
Area Codes	217,618
Time Zone	CST
Major Cities	Marshall (population: 7,335), Casey (population: 4,722), Martinsville (population: 2,402), West Union (population: 938), Westfield (population: 841), Dennison (population: 716), West York (population: 394)
Land Area	6,247 sq miles
Water Area	502 sq miles
Household Income	$47,405
Housing Units	7,699
Median Home Value	$87,800
High School Grads	90% of population
Holders of Bachelors Degrees	18% of population
Retail Spending	$6,513 per capita
Food & Accomodation Sales	$17,035 per capita