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

Questions or comments regarding the Functional Classification Maps, please Email the Functional Class Section or call by phone at (360) 570-2364.