Costco Gas Prices in Washington
Washington average
Regular5.279▲ +$0.032
Premium5.839▲ +$0.013
Diesel6.999▲ +$0.270
Avg of 9 stations · per gallon
Average price history in Washington
Last 30 days · per gallonRegularPremiumDiesel
View data as table
| Date | Regular | Premium | Diesel |
|---|---|---|---|
| Aug 17 | $4.853 | $5.401 | $5.949 |
| Aug 18 | $4.875 | $5.395 | $5.949 |
| Aug 19 | $4.893 | $5.418 | $5.949 |
| Aug 20 | $4.908 | $5.423 | $5.949 |
| Aug 21 | $4.913 | $5.433 | $5.949 |
| Aug 22 | $4.956 | $5.546 | $5.949 |
| Aug 23 | $4.987 | $5.541 | $5.949 |
| Aug 24 | $4.989 | $5.547 | $5.949 |
| Aug 25 | $4.938 | $5.519 | $6.034 |
| Aug 26 | $4.950 | $5.520 | $6.034 |
| Aug 27 | $4.939 | $5.492 | $6.034 |
| Aug 28 | $4.923 | $5.455 | $6.049 |
| Aug 29 | $4.932 | $5.466 | $6.049 |
| Aug 30 | $4.937 | $5.480 | $6.049 |
| Aug 31 | $4.976 | $5.513 | $6.064 |
| Sep 1 | $4.991 | $5.532 | $6.129 |
| Sep 2 | $5.105 | $5.637 | $6.379 |
| Sep 3 | $5.111 | $5.652 | $6.329 |
| Sep 4 | $5.123 | $5.689 | $6.349 |
| Sep 5 | $5.159 | $5.705 | $6.349 |
| Sep 6 | $5.145 | $5.703 | $6.349 |
| Sep 7 | $5.195 | $5.761 | $6.399 |
| Sep 8 | $5.195 | $5.761 | $6.399 |
| Sep 9 | $5.210 | $5.773 | $6.399 |
| Sep 10 | $5.230 | $5.801 | $6.399 |
| Sep 11 | $5.257 | $5.828 | $6.579 |
| Sep 12 | $5.257 | $5.821 | $6.579 |
| Sep 13 | $5.257 | $5.821 | $6.604 |
| Sep 14 | $5.247 | $5.826 | $6.729 |
| Sep 15 | $5.279 | $5.839 | $6.999 |
Costco gas stations in Washington include 9 warehouses across 9 cities. The cheapest regular is $5.099 at Kennewick. 2 of 9 sell diesel.
Stations
Washington stations by price
Cheapest first — page through to see more.
| Rank | Station | Location | Regular today |
|---|---|---|---|
| 1 | SpokaneSpokane | Spokane | $5.099 |
| 2 | TacomaTacoma | Tacoma | $5.099 |
| 3 | KennewickKennewick | Kennewick | $5.099 |
| 4 | Everett WAEverett | Everett | $5.259 |
| 5 | SilverdaleSilverdale | Silverdale | $5.299 |
| 6 | Federal WayFederal Way | Federal Way | $5.299 |
| 7 | SeattleSeattle | Seattle | $5.399 |
| 8 | KirklandKirkland | Kirkland | $5.399 |
| 9 | TukwilaTukwila | Tukwila | $5.559 |
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