In 2021, Clay City, IL had a population of 819 people with a median age of 31.9 and a median household income of $48,304. Between 2020 and 2021 the population of Clay City, IL declined from 896 to 819, a −8.59% decrease and its median household income grew from $45,104 to $48,304, a 7.09% increase.
The 5 largest ethnic groups in Clay City, IL are White (Non-Hispanic) (97.3%), Black or African American (Non-Hispanic) (1.1%), Two+ (Non-Hispanic) (1.1%), Other (Hispanic) (0.488%), and White (Hispanic) (0%).
None of the households in Clay City, 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.
99.1% of the residents in Clay City, IL are U.S. citizens.
In 2021, the median property value in Clay City, IL was $70,000, and the homeownership rate was 75.4%.
Most people in Clay City, IL drove alone to work, and the average commute time was 28.6 minutes. The average car ownership in Clay City, IL was 2 cars per household.