Clayton County, IA has a population of 17,735 people with a median age of 45.9 and a median household income of $48,482. Between 2015 and 2016 the population of Clayton County, IA declined from 17,806 to 17,735, a 0.4% decrease and its median household income grew from $48,007 to $48,482, a 0.99% increase.
The population of Clayton County, IA is 96.2% White, 1.87% Hispanic, and 0.62% Two+. 3.38% of the people in Clayton County, IA speak a non-English language, and 99% are U.S. citizens.
The largest universities in Clayton County, IA are Upper Iowa University, with 2,091 graduates, Northeast Iowa Community College-Calmar, with 865 graduates, and Luther College, with 698 graduates.
The median property value in Clayton County, IA is $111,500, and the homeownership rate is 76%. Most people in Clayton County, IA commute by Drove Alone, and the average commute time is 19.6 minutes. The average car ownership in Clayton County, IA is 2 cars per household.
Clayton County, IA is the 39th most populated county in Iowa and borders Allamakee County, IA; Buchanan County, IA; Delaware County, IA; Dubuque County, IA; Fayette County, IA; Winneshiek County, IA; Crawford County, WI; Grant County, WI& 3 more.