Clay County is located in the U.S. state of Missouri and is part of the Kansas City metropolitan area. As of the 2020 census, the county had a population of 253,335, making it the fifth-most populous county in Missouri. Its county seat is Liberty.... Wikipedia
Cities: Liberty, Kearney, Smithville, and more
County seat: Liberty
Congressional districts: 5th, 6th
Founded: January 2, 1822
Largest city: Kansas City
Named for: Henry Clay