Clayton County, Iowa

county in Iowa, United States

Clayton County is a county in the U.S. state of Iowa. As of the 2020 census, the population was 17,043.[1] The county seat is Elkader.[2] The county was founded in 1837 and was named in honor of John M. Clayton,[3] United States Senator from Delaware and later Secretary of State under President Zachary Taylor.


  1. "QuickFacts: Clayton County, Iowa". United States Census Bureau. Retrieved August 9, 2023.
  2. "Find a County". National Association of Counties. Archived from the original on 2011-05-31. Retrieved 2011-06-07.
  3. Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Govt. Print. Off. p. 84.