In 2021, Clark County, IL had a population of 15.6k people with a median age of 41.8 and a median household income of $66,067. Between 2020 and 2021 the population of Clark County, IL declined from 15,602 to 15,587, a −0.0961% decrease and its median household income grew from $59,481 to $66,067, a 11.1% increase.
The 5 largest ethnic groups in Clark County, IL are White (Non-Hispanic) (96.5%), Two+ (Hispanic) (1.15%), Two+ (Non-Hispanic) (0.988%), Black or African American (Non-Hispanic) (0.757%), and Asian (Hispanic) (0.366%).
None of the households in Clark County, IL reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
99.7% of the residents in Clark County, IL are U.S. citizens.
In 2021, the median property value in Clark County, IL was $102,200, and the homeownership rate was 80%.
Most people in Clark County, IL drove alone to work, and the average commute time was 25.6 minutes. The average car ownership in Clark County, IL was 2 cars per household.
Clark County, IL borders Coles County, IL, Crawford County, IL, Cumberland County, IL, Edgar County, IL, Jasper County, IL, Sullivan County, IN, and Vigo County, IN.