Mason County, Washington

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Mason County is a county located in the U.S. state of Washington. It is named for the first Secretary of Washington Territory, C.H. Mason. As of 2000, the population was 49,405. 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.[1][2]



According to the U.S. Census Bureau, the county has a total area of 1,051 square miles (2,722 km²), of which 961 square miles (2,489 km²) is land and 90 square miles (233 km²) (8.56%) is water.

Geographic features

Major highways

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