St. John, Washington
St. John is a town in Whitman County, Washington, United States. The population was 537 at the 2010 census. St. John is the birthplace of the twentieth governor of Washington, Mike Lowry. History. St. John was founded and named in the late 1880s for settler E.T. St. John. St. John was officially incorporated on March 10, 1904.<ref>Cities and Towns, State of Washington - Dates of Incorporation, Disincorporation, and Changes of Classification