Kitsap County is located on the Kitsap Peninsula in Washington State across the Puget Sound from Seattle. It comprises a total land mass of 393 square miles. Kitsap County ranks 36th in size among Washington counties.
Kitsap County was founded in 1857, and was originally named Slaughter County. The people of Kitsap County are represented by three County Commissioners, and are served by a variety of agencies and government departments. Kitsap County occupies a unique portion of the State of Washington, directly between the urban areas of Seattle and Tacoma and the wilderness of the Olympic Mountains. It is bounded by the Hood Canal on the west, Puget Sound on the east, and Mason and Pierce Counties to the south.