Johns Island is one of the San Juan Islands in San Juan County, Washington, USA. It lies just east of Stuart Island and north of Spieden Island. Johns Island is home to Camp Nor'wester, a summer camp for kids on the west end of the island, and several private vacation cabins on the east end of the island. It has a land area of 0.9083 km² (0.3507 sq mi, or 224.45 acres). As with many of the outlying San Juan Islands, Johns Island does not have electricity or plumbing.