Henry Island is one of the San Juan Islands of San Juan County, Washington, United States. It lies just off the northwest shore of San Juan Island. The small Pearl Island also lies between Henry Island and San Juan Island at its northern end. Just northwest of the northern tip of Henry Island lies Battleship Island, a State bird sanctuary. Except for Stuart …
Henry Island is one of the San Juan Islands of San Juan County, Washington, United States. It lies just off the northwest shore of San Juan Island. The small Pearl Island also lies between Henry Island and San Juan Island at its northern end. Just northwest of the northern tip of Henry Island lies Battleship Island, a State bird sanctuary. Except for Stuart Island, Henry Island is the westernmost of the San Juan Islands. It has a land area of 4.126 km² and had a total of19 permanent residents as of the 2010 census.