In 2021, Clayton County, IA had a population of 17.2k people with a median age of 47.1 and a median household income of $58,148. Between 2020 and 2021 the population of Clayton County, IA declined from 17,527 to 17,173, a −2.02% decrease and its median household income grew from $56,456 to $58,148, a 3% increase.
The 5 largest ethnic groups in Clayton County, IA are White (Non-Hispanic) (95.6%), Two+ (Non-Hispanic) (1.69%), White (Hispanic) (1.08%), Two+ (Hispanic) (0.594%), and Other (Hispanic) (0.396%).
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.
99.2% of the residents in Clayton County, IA are U.S. citizens.
In 2021, the median property value in Clayton County, IA was $136,000, and the homeownership rate was 75.3%.
Most people in Clayton County, IA drove alone to work, and the average commute time was 24.3 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.