In 2019, Clay County, KS had a population of 8.08k people with a median age of 42.5 and a median household income of $53,929. Between 2018 and 2019 the population of Clay County, KS declined from 8,142 to 8,082, a −0.737% decrease and its median household income declined from $56,186 to $53,929, a −4.02% decrease.
The 5 largest ethnic groups in Clay County, KS are White (Non-Hispanic) (94%), White (Hispanic) (2.54%), Two+ (Non-Hispanic) (1.35%), Black or African American (Non-Hispanic) (0.891%), and American Indian & Alaska Native (Non-Hispanic) (0.656%). 0% of the households in Clay County, KS speak a non-English language at home as their primary language.
99.5% of the residents in Clay County, KS are U.S. citizens.
In 2019, the median property value in Clay County, KS was $98,000, and the homeownership rate was 71.1%. Most people in Clay County, KS drove alone to work, and the average commute time was 18.5 minutes. The average car ownership in Clay County, KS was 2 cars per household.