Costco Wisconsin Gas Prices
Find the cheapest Costco gas in Wisconsin— every fuel center ranked by today's price.
12 Costco fuel centers in 12 cities · 2 of 12 sell diesel
Costco operates 12 fuel centers in Wisconsin, spread across 12 cities. Across the state, regular gas averages $3.947, premium runs about $0.981 higher at $4.927, and diesel sits at $5.829. The lowest-priced regular pump is at Costco Grand Chute in Grand Chute at $3.849, while Grafton in Grafton sits about $0.250 higher. Across the state, regular pump prices have eased about $0.224 over the past month, from $4.171 a month ago. Premium has eased about $0.171 and diesel has climbed about $0.030 over the same period. Diesel is sold at 2 of the 12 Wisconsin locations.
If your vehicle takes premium, the lowest in Wisconsin is Costco New Berlin in New Berlin at $4.799. The cheapest diesel is at Costco Menomonee Falls in Menomonee Falls at $5.699. Pump prices shift from one warehouse to the next with local taxes, fuel-blend rules, and transport costs, but Costco fuel is members-only and usually runs below nearby branded stations — which is what keeps these pumps busy.
30-day Wisconsin average price trend
Browse Wisconsin cities
All Wisconsin stations by price
| Station | Regular | Premium |
|---|---|---|
| Grand Chute Grand Chute | $3.849 | $4.849 |
| Oconomowoc Oconomowoc | $3.849 | $4.899 |
| Pewaukee Pewaukee | $3.849 | $4.899 |
| Menomonee Falls Menomonee Falls | $3.899 | $4.899 |
| New Berlin New Berlin | $3.909 | $4.799 |
| Sun Prairie Sun Prairie | $3.959 | $4.949 |
| Eau Claire Eau Claire | $3.969 | $5.039 |
| Pleasant Prairie Pleasant Prairie | $3.979 | $4.899 |
| Bellevue Bellevue | $3.999 | $4.899 |
| Middleton Middleton | $3.999 | $4.899 |