Lyndon, KS -- U.S. city in Kansas Population (2000): 1038 Housing Units (2000): 453 Land area (2000): 0.748128 sq. miles (1.937642 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.748128 sq. miles (1.937642 sq. km) FIPS code: 43350 Located within: Kansas (KS), FIPS 20 Location: 38.610233 N, 95.685352 W ZIP Codes (1990): 66451 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Lyndon, KS Lyndon