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San Juan County, Washington
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San Juan County, Washington Map
An detailed map of San Juan County. Click on a nearby County to view more information about that County.
Map of Counties in Washington
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About San Juan County, Washington
San Juan County is a county in the Salish Sea in the far northwestern corner of the U.S. state of Washington. As of the 2020 census, its population was 17,788. The county seat and only incorporated town is Friday Harbor, on San Juan Island. The county was formed on October 31, 1873, from Whatcom County and is named for the San Juan Islands, which are in turn named for Juan Vicente de Güemes, 2nd Count of Revillagigedo, the Viceroy of New Spain.
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This site has an interactive map of Washington Counties. Click on the map to find your Washington county, and view more details. You can also search for your address and use your GPS to find your Washington County.
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