San Juan County | |
---|---|
Motto: A World Away[citation needed] | |
Coordinates: 48°34′N 122°58′W / 48.57°N 122.97°W | |
Country | United States |
State | Washington |
Founded | October 31, 1873 |
Named for | San Juan Islands |
Seat | Friday Harbor |
Largest town | Friday Harbor |
Area | |
• Total | 621 sq mi (1,610 km2) |
• Land | 174 sq mi (450 km2) |
• Water | 447 sq mi (1,160 km2) 72% |
Population (2020) | |
• Total | 17,788 |
• Estimate (2023) | 18,566 |
• Density | 96/sq mi (37/km2) |
Time zone | UTC−8 (Pacific) |
• Summer (DST) | UTC−7 (PDT) |
Congressional district | 2nd |
Website | www |
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.[1] The county seat and only incorporated town is Friday Harbor,[2] on San Juan Island. The county was formed on October 31, 1873, from Whatcom County[3] and is named for the San Juan Islands, which are in turn named for Juan Vicente de Güemes, 2nd Count of Revillagigedo,[4] the Viceroy of New Spain.
Although the islands have no state highways, the ferry routes serving them are designated as part of the state highway system.