Washington has 35 Costco warehouses, including 11 with diesel fuel and 34 with gasoline. Use our interactive map to search by ZIP code or city, or browse the diesel station list below.
→ Search for Costco stations near you in Washington
Washington state has some of the highest gas prices in the nation, which makes Costco's 10-to-30-cent-per-gallon discount especially valuable. With 35 warehouses statewide — including Seattle, Tacoma, Bellevue, Everett, and Spokane — Washington drivers have excellent access to Costco fuel stations. Use the interactive map for current locations and directions.
Costco gas stations in Washington typically run from 6:00 AM to 10:00 PM on weekdays with reduced weekend hours. A membership is required, and Executive members earn 2% cashback on gas (annual cap applies). For more, see our FAQ page. For diesel quality concerns, read about Costco diesel quality and fuel additives for maintenance.
Every Costco warehouse in Washington that offers diesel fuel:
| Warehouse | Address | Phone | Diesel Hours |
|---|---|---|---|
| Costco Warehouse - Bellingham | 4125 Arctic Ave, Bellingham, WA | (360) 671-6947 | See station details |
| Costco Warehouse - Bonney Lake | 9801 204Th Ave E, Bonney Lake, WA | (253) 750-8120 | See station details |
| Costco Warehouse - Clarkston | 301 5Th St, Clarkston, WA | (509) 758-1800 | See station details |
| Costco Warehouse - Lacey | 1470 Marvin Rd Ne, Lacey, WA | (360) 412-3500 | See station details |
| Costco Warehouse - Lynnwood | 18109 33Rd Ave W, Lynnwood, WA | (425) 697-1062 | See station details |
| Costco Warehouse - Redmond | 7725 188Th Ave Ne, Redmond, WA | (425) 406-5382 | See station details |
| Costco Warehouse - Silverdale | 10000 Mickelberry Rd Nw, Silverdale, WA | (360) 692-9213 | See station details |
| Costco Warehouse - N Spokane | 12020 N Newport Hwy, Spokane, WA | (509) 466-9668 | See station details |
| Costco Warehouse - Tukwila | 400 Costco Dr Ste 150, Tukwila, WA | (206) 575-9191 | See station details |
| Costco Warehouse - Vancouver WA | 6720 Ne 84Th St, Vancouver, WA | (360) 828-2262 | See station details |
| Costco Warehouse - Woodinville | 24008 Snohomish Woodinville Rd, Woodinville, WA | (425) 806-7700 | See station details |
Costco fuel stations consistently offer some of the lowest diesel prices in Washington. Costco members can save significantly on diesel for trucks, RVs, and commercial vehicles. Diesel at Costco is typically high-quality, additized ultra-low sulfur diesel (ULSD).