Gem, KS -- U.S. city in Kansas Population (2000): 96 Housing Units (2000): 47 Land area (2000): 0.325551 sq. miles (0.843174 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.325551 sq. miles (0.843174 sq. km) FIPS code: 26050 Located within: Kansas (KS), FIPS 20 Location: 39.425730 N, 100.896294 W ZIP Codes (1990): 67734 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Gem, KS Gem