This county in western Washington is bounded on the north by Deception Pass; on the east by Skagit Bay, Port Susan, and Possession Sound; on the south by Possession Sound and Admiralty Inlet; and on the west by Admiralty Inlet and the Strait of Juan de Fuca. It consists entirely of islands. The largest are Whidbey and Camano islands; Smith and Minor islands to the west are small; and many very small islands are in the Deception Pass area, including Deception Island. The county was created from a portion of King County on January 6, 1853, by the Oregon Territorial Legislature. The name is for the islands that make up the entire county.