Back San Juan Island (pulo sa Tinipong Bansa, Washington) CEB San Juan Island German Isla San Juan Spanish San Juan Island French San Juan-sziget Hungarian San Juan Island Italian San Juan (wyspa) Polish Сан-Хуан (остров) Russian Сан Хуан (острво) Serbian سان خوآن جزیرہ Urdu
 Location of San Juan Island in the San Juans | |
  San Juan Island | |
| Geography | |
|---|---|
| Location | Pacific Northwest |
| Coordinates | 48°32′N 123°05′W / 48.533°N 123.083°W |
| Archipelago | San Juan Islands |
| Area | 55.053 sq mi (142.59 km2) |
| Highest elevation | 1,080 ft (329 m) |
| Highest point | Mount Dallas |
| Administration | |
United States | |
| State | Washington |
| County | San Juan County |
| Largest settlement | Friday Harbor (pop. 2,162) |
| Demographics | |
| Population | 6,894 (2010 [1]) |
| Pop. density | 47.84/km2 (123.91/sq mi) |
San Juan Island is the second-largest and most populous of the San Juan Islands in northwestern Washington, United States. It has a land area of 142.59 km2 (55.053 sq mi) and a population of 8,632[2] as of the 2020 census.
Washington State Ferries serves Friday Harbor, which is San Juan Island's major population center, the San Juan County seat, and the only incorporated town in the islands.
- ^ "San Juan Islands Chamber of Commerce".
- ^ "State of Washington County Subdivisions - 2020 Census - Data as of January 1, 2020". tigerweb.geo.census.gov. Retrieved 2023-04-14.