Serving the following counties:
Adams,
Asotin,
Benton,
Chelan,
Clallam,
Clark,
Columbia,
Cowlitz,
Douglas,
Ferry,
Franklin,
Garfield,
Grant,
Grays Harbor,
Island,
Jefferson,
King,
Kitsap,
Kittitas,
Klickitat,
Lewis,
Lincoln,
Mason,
Okanogan,
Pacific,
Pend Oreille,
Pierce,
San Juan,
Skagit,
Skamania,
Snohomish,
Spokane,
Stevens,
Thurston,
Wahkiakum,
Walla Walla,
Whatcom,
Whitman, and
Yakima