St. John, KS -- U.S. city in Kansas Population (2000): 1318 Housing Units (2000): 686 Land area (2000): 1.800267 sq. miles (4.662670 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.800267 sq. miles (4.662670 sq. km) FIPS code: 62275 Located within: Kansas (KS), FIPS 20 Location: 38.001029 N, 98.761045 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: St. John, KS St. John