Mayfield, KY -- U.S. city in Kentucky Population (2000): 10349 Housing Units (2000): 4907 Land area (2000): 6.677812 sq. miles (17.295453 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 6.677812 sq. miles (17.295453 sq. km) FIPS code: 50898 Located within: Kentucky (KY), FIPS 21 Location: 36.737693 N, 88.640122 W ZIP Codes (1990): 42066 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Mayfield, KY Mayfield