In 2023, Clay County, IL had a population of 13.2k people with a median age of 41.5 and a median household income of $57,266. Between 2022 and 2023 the population of Clay County, IL declined from 13,248 to 13,173, a −0.566% decrease and its median household income declined from $58,028 to $57,266, a −1.31% decrease.
The 5 largest ethnic groups in Clay County, IL are White (Non-Hispanic) (95%), Two+ (Non-Hispanic) (2.89%), Black or African American (Non-Hispanic) (0.706%), White (Hispanic) (0.319%), and Two+ (Hispanic) (0.311%).
None of the households in Clay 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.
99.8% of the residents in Clay County, IL are U.S. citizens.
In 2023, the median property value in Clay County, IL was $94,300, and the homeownership rate was 80.7%.
Most people in Clay County, IL drove alone to work, and the average commute time was 26.1 minutes. The average car ownership in Clay County, IL was 2 cars per household.
Clay County, IL borders Effingham County, IL, Fayette County, IL, Jasper County, IL, Marion County, IL, Richland County, IL, and Wayne County, IL.