Historical boundaries
1967-1972: Island & Kitsap counties
1972-1981: Island & Snohomish counties
1981-Present: Island, Skagit & Snohomish counties
Current boundary
Island County, western Skagit County, and northwestern Snohomish County, including the cities of Oak Harbor, La Conner, Camano, and Stanwood.
Historical Maps
1965-1972: [Link]
1972-1982: [Link]
1982-1992: Not Available
1992-2002: [Link]
2002-Present: [Link]
