In 2017, Clayton County, IA had a population of 17.7k people with a median age of 46.5 and a median household income of $51,114. Between 2016 and 2017 the population of Clayton County, IA declined from 17,735 to 17,711, a -0.135% decrease and its median household income grew from $48,482 to $51,114, a 5.43% increase.
The 5 largest ethnic groups in Clayton County, IA are White (Non-Hispanic) (96.2%), White (Hispanic) (1.64%), Black or African American (Non-Hispanic) (1.04%), Asian (Non-Hispanic) (0.446%), and Two or More Races (Non-Hispanic) (0.367%). N/A% of the people in Clayton County, IA speak a non-English language, and 99% are U.S. citizens.
The median property value in Clayton County, IA is $116,500, and the homeownership rate is 75.6%. Most people in Clayton County, IA commute by Drove Alone, and the average commute time is 20.1 minutes. The average car ownership in Clayton County, IA is 2 cars per household.