Anacortes Public Library
Bellingham Public Library
Bellingham Public Library - Barkley Branch
Bellingham Public Library - Fairhaven Branch
Burlington Public Library
Camas Public Library
Carpenter Memorial Library
Castle Rock Public Library
Cathlamet Public Library
Central Skagit Sedro-Woolley Library
Columbia County Rural Library District
Davenport Public Library
Denny Ashby Library
East Adams Library District
East Adams Library District - Washtucna Community Library
Ellensburg Public Library
Gilmour Memorial Library
Grandview Library
Guemes Island Library
Harrington Public Library
Hesseltine Public Library
Jefferson County Library
Kalama Public Library
Kelso Public Library
La Conner Regional Library
Liberty Lake Municipal Library
Longview Public Library
Lopez Island Library
Mount Vernon City Library
Neill Public Library
North Olympic Library System
North Olympic Library System - Clallam Bay Branch
North Olympic Library System - Forks Branch
North Olympic Library System - Port Angeles Branch
North Olympic Library System - Sequim Branch
Ocean Shores Public Library
Odessa Public Library
Orcas Island Public Library
Port Townsend Public Library
Puyallup Public Library
Reardan Memorial Library
Richland Public Library
Roslyn Public Library
San Juan Island Library
Shaw Island Library
Sprague Public Library
Upper Skagit Library
Walla Walla County Rural Library District
Walla Walla County Rural Library District - Burbank Library
Walla Walla County Rural Library District - College Place Library
Walla Walla County Rural Library District - Prescott Library
Walla Walla County Rural Library District - Touchet Community Library
Walla Walla Public Library
Weller Public Library
Whatcom County Library System
Whatcom County Library System - Blaine
Whatcom County Library System - Deming
Whatcom County Library System - Everson
Whatcom County Library System - Ferndale
Whatcom County Library System - Lummi Island
Whatcom County Library System - Lynden
Whatcom County Library System - North Fork
Whatcom County Library System - Point Roberts
Whatcom County Library System - South Whatcom
Whatcom County Library System - Sumas
Whitman County Rural Library District
Whitman County Rural Library District - Albion Branch Library
Whitman County Rural Library District - Colfax Main Library
Whitman County Rural Library District - Colton Branch Library
Whitman County Rural Library District - Endicott Branch Library
Whitman County Rural Library District - Farmington Branch Library
Whitman County Rural Library District - Garfield Branch Library
Whitman County Rural Library District - LaCrosse Branch Library
Whitman County Rural Library District - Malden Branch Library
Whitman County Rural Library District - Oakesdale Branch Library
Whitman County Rural Library District - Palouse Branch Library
Whitman County Rural Library District - Rosalia Branch Library
Whitman County Rural Library District - St. John Branch Library
Whitman County Rural Library District - Tekoa Branch Library
Whitman County Rural Library District - Uniontown