San Juan County on the map of Washington 2024. Cities, roads, borders and directions in San Juan County of Washington.

San Juan County is found in the northern coastal area of the state of Washington. This beautiful county is named after San Juan Islands, itself derived from Juan Vicente de Güemes. The population of San Juan County exceeds 18 thousand people. The county, formed in 1873, covers an area of 174 square miles. The county seat of San Juan County is Friday Harbor. This map shows the borders of San Juan County as well as neighboring counties, including major highways and natural objecsts as of 2024. Zoom in or out of the map using the plus/minus panel. Move the center of this map by dragging it. Also check out the satellite map of San Juan County.