San Juan Island

San Juan Island
	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 )
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.

[1] "San Juan Islands Chamber of Commerce".

[2] "State of Washington County Subdivisions - 2020 Census - Data as of January 1, 2020". tigerweb.geo.census.gov. Retrieved 2023-04-14.

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