Kitsap County is located on the Kitsap Peninsula in Washington State. It is bordered on the west by the Hood Canal, the north by Puget Sound, across the Puget Sound on the east by King County and the south by Mason County. As of the 2010 U. S. Census, Kitsap County has a total land area of 394.94 square miles and a population of 251,133. Bremerton is its largest city with a population of 37,729. Also of interest:
- The intersecting watershed sub-basins(2): Puget Sound and Hood Canal.
- Major lakes: Kitsap Lake and Long Lake.
- Major river: Union River
- Gold Mountain (1,761 feet) is the highest point in Kitsap County.
- Kitsap County is one of the smallest counties in the state in terms of land area; however, it ranks third in the state in terms of its population density.