Mason County, Washington Genealogy

United States &gt; Washington &gt; Mason County

Parent County
Mason County was created 13 March 1854 from Thurston County. Originally known as Sawamish County until January 3, 1864. County seat: Oakland (1854-1888) and Shelton, originally Sheltonville (1888- present).

Web Sites

 * Family History Library Catalog for this county.