Tonganoxie, KS -- U.S. city in Kansas Population (2000): 2728 Housing Units (2000): 1032 Land area (2000): 3.136384 sq. miles (8.123197 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 3.136384 sq. miles (8.123197 sq. km) FIPS code: 70800 Located within: Kansas (KS), FIPS 20 Location: 39.108880 N, 95.086885 W ZIP Codes (1990): 66086 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Tonganoxie, KS Tonganoxie