Washington Costco Warehouses
- Aurora Village
- Bellingham
- Bonney Lake
- Burlington WA
- Clarkston
- Covington WA
- E Vancouver WA
- Everett WA
- Federal Way
- Gig Harbor
- Issaquah
- Kennewick
- Kirkland
- Lacey
- Lake Stevens
- Lynnwood
- Marysville WA
- N Spokane
- Puyallup
- Redmond
- Richland
- Ridgefield
- Seattle
- Sequim
- Silverdale
- Spokane
- Tacoma
- Tukwila
- Tumwater
- Union Gap
- Vancouver WA
- Wenatchee
- Woodinville