Mason County
Founded: March 13, 1854 |
Mason County
Sheriff's Office
419 North 4th Street
Shelton, WA 98584
Phone: 360.427.9670
Web Site
Send Email |
Mason County is named for the first Secretary of
Washington Territory, C. H. Mason. As of 2007, the
estimated population was 54,600. The county seat is at Shelton, the
county's only incorporated city.
Mason County was formed out of King County on March 13,
1854. Originally named Sahewamish County, it took its
present name in 1864.
According to the U.S. Census Bureau, the county has a total
area of 1,051 square miles, of which, 961 square miles of it
is land and 90 square miles of it is water. The population
density is 52 per square mile.
| Principal Communities: |
- Allyn-Grapeview
- Shelton (County Seat)
- Skokomish
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