In 2023, Clayton County, IA had a population of 17.1k people with a median age of 46.4 and a median household income of $62,326. Between 2022 and 2023 the population of Clayton County, IA declined from 17,123 to 17,069, a −0.315% decrease and its median household income grew from $60,441 to $62,326, a 3.12% increase.
The 5 largest ethnic groups in Clayton County, IA are White (Non-Hispanic) (95.2%), Two+ (Non-Hispanic) (1.53%), Two+ (Hispanic) (0.978%), White (Hispanic) (0.721%), and Black or African American (Non-Hispanic) (0.644%).
None of the households in Clayton County, IA 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 Clayton County, IA are U.S. citizens.
In 2023, the median property value in Clayton County, IA was $155,700, and the homeownership rate was 76.6%.
Most people in Clayton County, IA drove alone to work, and the average commute time was 24 minutes. The average car ownership in Clayton County, IA was 2 cars per household.
Clayton County, IA borders Allamakee County, IA, Buchanan County, IA, Delaware County, IA, Dubuque County, IA, Fayette County, IA, Winneshiek County, IA, Crawford County, WI, and Grant County, WI.