Kay -- U.S. County in Oklahoma Population (2000): 48080 Housing Units (2000): 21804 Land area (2000): 918.704997 sq. miles (2379.434917 sq. km) Water area (2000): 26.418598 sq. miles (68.423852 sq. km) Total area (2000): 945.123595 sq. miles (2447.858769 sq. km) Located within: Oklahoma (OK), FIPS 40 Location: 36.775009 N, 97.166108 W Headwords: Kay Kay, OK Kay County Kay County, OK