Reserve, KS -- U.S. city in Kansas Population (2000): 100 Housing Units (2000): 60 Land area (2000): 0.110424 sq. miles (0.285998 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.110424 sq. miles (0.285998 sq. km) FIPS code: 59050 Located within: Kansas (KS), FIPS 20 Location: 39.976378 N, 95.564464 W ZIP Codes (1990): 66434 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Reserve, KS Reserve