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 km (55.053 sq mi) and a population of 8,632 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.
Anacortes (/ˌænəˈkɔːrtəs/ AN-ə-KOR-təs) is a city in Skagit County, Washington, United States. The name "Anacortes" is an adaptation of the name of Anne Curtis Bowman, who was the wife of early Fidalgo Island settler Amos Bowman. Anacortes' population was 17,637 at the time of the 2020 census. It is one of two principal cities of and included in the Mount Vernon-Anacortes Metropolitan Statistical Area.
Anacortes is known for the Washington State Ferries dock and terminal serving Lopez Island, Shaw Island, Orcas Island, and San Juan Island. There is also a Skagit County-operated ferry that serves Guemes Island, a residential island located across Guemes Channel, north of Anacortes.