Silverdale is a census-designated place (CDP) in Kitsap County, Washington, in the United States. The population was 19,204 at the 2010 census. Despite many attempts at incorporation, Silverdale remains an unincorporated community.
Silverdale ranks 158th of 522 areas in Washington for which per capita income data is collected.
Silverdale is on the Kitsap Peninsula, situated ten miles northwest of the city of Bremerton and nine miles south of Poulsbo. Silverdale lies at the north tip of Dyes Inlet, which connects it to Bremerton via Sinclair Inlet and the Pacific Ocean via Puget Sound.