Geographic Participation by Districts (2008 – 2016)
ESD 101: Cheney, Chewelah, Colfax, Deer Park, Freeman, Garfield, Mead, Medical Lake, Newport, Nine Mile Falls, Oakesdale, Palouse, Pullman, Republic, Riverside, Wellpinit, West Valley, Columbia (Hunters), Curlew, Davenport, East Valley (Spokane), Reardan-Edwall, Tekoa, Lind-Ritzville
ESD 105: Cle Elum-Roslyn, Easton, Ellensburg, Goldendale, Kittitas, Mabton, Royal, Toppenish
ESD 112: Camas, Hockinson, La Center, Ridgefield, Washougal, White Salmon Valley, Woodland
ESD 113: Aberdeen, Elma, ESD 113, Lake Quinault, Mossyrock, Napavine, Toledo, White Pass, Winlock, Onalaska, Rochester, Southside, Tenino
ESD 114: Bainbridge Island, Chimacum, North Kitsap, North Mason
ESD 121: Auburn, Eatonville, Enumclaw, ESD 121, Renton, Skykomish, Steilacoom, Tacoma, Vashon Island
ESD 123: College Place, Columbia-Burbank, Finley, Pasco, Prosser, Richland, Waitsburg
ESD 171: Brewster, Bridgeport, Cascade, Cashmere, Ephrata, Lake Chelan, Pateros, Soap Lake, Tonasket, Warden
ESD 189: Granite Falls, Lakewood, Meridian, Mount Baker, Sultan