Gridley, KS -- U.S. city in Kansas Population (2000): 372 Housing Units (2000): 168 Land area (2000): 0.374644 sq. miles (0.970323 sq. km) Water area (2000): 0.050729 sq. miles (0.131387 sq. km) Total area (2000): 0.425373 sq. miles (1.101710 sq. km) FIPS code: 28850 Located within: Kansas (KS), FIPS 20 Location: 38.099452 N, 95.884507 W ZIP Codes (1990): 66852 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Gridley, KS Gridley