Waterville is a town in and the county seat of Douglas County, Washington, United States. It is part of the Wenatchee–East Wenatchee Metropolitan Statistical Area. The population was 1,138 at the 2010 census.
Waterville was founded in 1885 and platted in 1886. The town was incorporated under the Territorial Charter in 1889 but after Washington gained statehood the town was officially incorporated on May 12, 1890.
Since its founding in 1889, Waterville, along with the designation of being the seat of Douglas County, boasts a rich history filled with farming, recreation destinations, and diverse economic trends.