St. John, WA -- U.S. town in Washington Population (2000): 548 Housing Units (2000): 279 Land area (2000): 0.518846 sq. miles (1.343806 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.518846 sq. miles (1.343806 sq. km) FIPS code: 60860 Located within: Washington (WA), FIPS 53 Location: 47.090403 N, 117.582085 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: St. John, WA St. John