Johnson City, KS -- U.S. city in Kansas Population (2000): 1528 Housing Units (2000): 609 Land area (2000): 1.103073 sq. miles (2.856946 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.103073 sq. miles (2.856946 sq. km) FIPS code: 35600 Located within: Kansas (KS), FIPS 20 Location: 37.569623 N, 101.752901 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Johnson City, KS Johnson City