Haddam, KS -- U.S. city in Kansas Population (2000): 169 Housing Units (2000): 96 Land area (2000): 0.346512 sq. miles (0.897461 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.346512 sq. miles (0.897461 sq. km) FIPS code: 29400 Located within: Kansas (KS), FIPS 20 Location: 39.856335 N, 97.302865 W ZIP Codes (1990): 66944 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Haddam, KS Haddam