Costco gas prices in Wisconsin
Wisconsin average
- Regular
- $3.551
- Premium
- $4.525
- Diesel
- $4.099
Average across 11 stations, per gallon · updated July 22, 2026
Costco has 11 gas stations in Wisconsin — the cheapest regular today is $3.359/gal at Costco Pewaukee in Pewaukee. Wisconsin Costco regular prices have held roughly steady over the past month, at around $3.551 per gallon. Diesel is down $0.425 over the same stretch, now at $4.099.
Gas stations
11
Wisconsin
Avg regular
$3.551
per gallon, USD
Cheapest now
$3.359
Costco Pewaukee
30-day price trend
Regular$3.551Premium$4.525Diesel$4.099
View price history as a table
| Date | Regular | Premium | Diesel |
|---|---|---|---|
| July 22, 2026 | $3.551 | $4.525 | $4.099 |
| July 21, 2026 | $3.510 | $4.470 | $4.099 |
| July 20, 2026 | $3.516 | $4.472 | $4.099 |
| July 19, 2026 | $3.494 | $4.457 | $4.099 |
| July 18, 2026 | $3.472 | $4.427 | $4.099 |
| July 17, 2026 | $3.434 | $4.414 | $4.099 |
| July 16, 2026 | $3.434 | $4.364 | $4.099 |
| July 15, 2026 | $3.444 | $4.362 | $4.099 |
| July 14, 2026 | $3.448 | $4.364 | $4.099 |
| July 13, 2026 | $3.444 | $4.364 | $4.199 |
| July 12, 2026 | $3.451 | $4.359 | $4.199 |
| July 11, 2026 | $3.461 | $4.329 | $4.029 |
| July 10, 2026 | $3.438 | $4.333 | $4.029 |
| July 9, 2026 | $3.435 | $4.321 | $4.079 |
| July 8, 2026 | $3.437 | $4.318 | $3.984 |
| July 7, 2026 | $3.448 | $4.314 | $4.119 |
| July 6, 2026 | $3.454 | $4.335 | $4.119 |
| July 5, 2026 | $3.468 | $4.347 | $4.139 |
| July 4, 2026 | $3.468 | $4.347 | $4.139 |
| July 3, 2026 | $3.474 | $4.375 | $4.144 |
| July 2, 2026 | $3.482 | $4.371 | $4.174 |
| July 1, 2026 | $3.512 | $4.420 | $4.179 |
| June 30, 2026 | $3.513 | $4.414 | $4.229 |
| June 29, 2026 | $3.520 | $4.417 | $4.344 |
| June 28, 2026 | $3.526 | $4.437 | $4.344 |
| June 27, 2026 | $3.532 | $4.444 | $4.379 |
| June 26, 2026 | $3.537 | $4.446 | $4.379 |
| June 25, 2026 | $3.559 | $4.490 | $4.469 |
| June 24, 2026 | $3.559 | $4.497 | $4.479 |
| June 23, 2026 | $3.563 | $4.508 | $4.524 |
All stations in Wisconsin
All 11 stations, sorted by regular price from lowest to highest. Prices in $/gal.
| Rank | Station | Regular | Premium | Diesel |
|---|---|---|---|---|
| 1 | Costco PewaukeePewaukee | $3.359 | $4.559 | — |
| 2 | Costco New BerlinNew Berlin | $3.399 | $4.499 | — |
| 3 | Costco Pleasant PrairiePleasant Prairie | $3.459 | $4.299 | — |
| 4 | Costco Menomonee FallsMenomonee Falls | $3.499 | $4.499 | $3.999 |
| 5 | Costco Sun PrairieSun Prairie | $3.499 | $4.549 | — |
| 6 | Costco MiddletonMiddleton | $3.559 | $4.479 | — |
| 7 | Costco Grand ChuteGrand Chute | $3.589 | $4.559 | $4.199 |
| 8 | Costco BellevueBellevue | $3.599 | $4.499 | — |
| 9 | Costco VeronaVerona | $3.599 | $4.479 | — |
| 10 | Costco GraftonGrafton | $3.699 | $4.759 | — |
| 11 | Costco Eau ClaireEau Claire | $3.799 | $4.599 | — |
Showing 1–10 of 11 stations