Washington Costco Gas Prices
33 Costco fuel centers in 32 cities · 12 of 33 sell diesel
Washington Avg Regular
$5.360
per gallon
Washington Avg Premium
$5.881
per gallon
Washington Avg Diesel
$6.483
per gallon
Washington regular is$0.74abovethe U.S. average ($4.622)
Premium runs$0.52above regular on average
Cheapest
Clarkston
Clarkston
$4.599
Most expensive
Sequim
Sequim
$5.599
Costco operates 33 fuel centers in Washington across 32 cities, with the largest cluster in Spokane (2 stations). Across the state, regular gas averages $5.360, premium runs about $0.52 higher at $5.881, and diesel sits at $6.483. The lowest-priced regular pump is at Costco Clarkston in Clarkston at $4.599, while Sequim in Sequim sits about $1.00 higher. Across the state, regular pump prices have climbed about $0.23 over the past two weeks, from $5.127 two weeks ago. Premium has climbed about $0.26 and diesel has eased about $0.10 over the same period. Diesel is sold at 12 of the 33 Washington locations.
30-day Washington average price trend
Browse Washington cities
Bellingham
1 station
Avg $5.159
Bonney Lake
1 station
Avg $5.529
Burlington
1 station
Avg $5.259
Camas
1 station
Avg $5.259
Clarkston
1 station
Avg $4.599
Covington
1 station
Avg $5.439
East Wenatchee
1 station
Avg $5.389
Everett
1 station
Avg $5.369
Federal Way
1 station
Avg $5.379
Gig Harbor
1 station
Avg $5.569
Issaquah
1 station
Avg $5.599
Kennewick
1 station
Avg $5.249
Showing 1–12 of 32
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All Washington stations by price
| Station | Regular | Premium |
|---|---|---|
| Clarkston Clarkston | $4.599 | $5.199 |
| N Spokane Spokane | $5.099 | $5.699 |
| Union Gap Union Gap | $5.099 | $5.579 |
| Spokane Spokane | $5.149 | $5.649 |
| Bellingham Bellingham | $5.159 | $5.759 |
| Vancouver WA Vancouver | $5.199 | $5.699 |
| Kennewick Kennewick | $5.249 | $5.699 |
| Richland Richland | $5.249 | $5.699 |
| Burlington WA Burlington | $5.259 | $5.999 |
| E Vancouver WA Camas | $5.259 | $5.699 |
Showing 1–10 of 33
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