Historical Boundaries
1967-1972: Snohomish County
1972-1981: King & Snohomish counties
1981-1992: Snohomish County
1992-2002: King & Snohomish counties
2002-Present: King, Skagit, Snohomish & Whatcom counties
Current Boundary
Represents the eastern portions of Whatcom, Skagit, and Snohomish counties south to the northwestern tip of rural King County, including the cities of Arlington, Monroe, and Granite Falls.
Historical Maps
1965-1972: [Link]
1972-1982: [Link]
1982-1992: Not Available
1992-2002: [Link]
2002-Present: [Link]
