Costco Wisconsin Gas Prices
Find the cheapest Costco gas in Wisconsin— every fuel center ranked by today's price.
11 Costco fuel centers in 11 cities · 2 of 11 sell diesel
Costco operates 11 fuel centers in Wisconsin, spread across 11 cities. Across the state, regular gas averages $3.474, premium runs about $0.90 higher at $4.375, and diesel sits at $4.144. The lowest-priced regular pump is at Costco New Berlin in New Berlin at $3.349, while Grafton in Grafton sits about $0.29 higher. Across the state, regular pump prices have eased about $0.39 over the past month, from $3.867 a month ago. Premium has eased about $0.46 and diesel has eased about $0.95 over the same period. Diesel is sold at 2 of the 11 Wisconsin locations.
If your vehicle takes premium, the lowest in Wisconsin is Costco Pleasant Prairie in Pleasant Prairie at $4.159. The cheapest diesel is at Costco Menomonee Falls in Menomonee Falls at $4.089. 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 |
|---|---|---|
| New Berlin New Berlin | $3.349 | $4.259 |
| Pleasant Prairie Pleasant Prairie | $3.359 | $4.159 |
| Menomonee Falls Menomonee Falls | $3.399 | $4.449 |
| Pewaukee Pewaukee | $3.399 | $4.399 |
| Eau Claire Eau Claire | $3.499 | $4.299 |
| Grand Chute Grand Chute | $3.499 | $4.309 |
| Middleton Middleton | $3.499 | $4.339 |
| Sun Prairie Sun Prairie | $3.499 | $4.499 |
| Verona Verona | $3.499 | $4.339 |
| Bellevue Bellevue | $3.579 | $4.439 |
Frequently asked questions
Which Costco has the cheapest gas in Wisconsin?
As of the latest daily update, Costco New Berlin in New Berlin has the cheapest regular gas in Wisconsin at $3.349 USD per gallon. Pump prices change daily, so check the ranking on this page for the current order.
How much is Costco gas in Wisconsin right now?
Across the 11 Costco fuel centers in Wisconsin, regular averages $3.474 USD per gallon, premium $4.375, and diesel $4.144. Those are averages of the latest pump prices — individual stations vary, so see the per-station table on this page.
Does Costco sell diesel in Wisconsin?
Yes — 2 of the 11 Costco fuel centers in Wisconsin sell diesel, averaging $4.144 USD per gallon. Availability varies by warehouse, so check the table above first.
Is Costco gas in Wisconsin cheaper than average?
Wisconsin Costco regular averages $3.474, about $0.35 lower than the national U.S. Costco average of $3.823. Wherever you fill up, Costco fuel is usually priced below nearby branded stations.
Do you need a Costco membership to buy gas in Wisconsin?
Yes — Costco gas stations in Wisconsin are members-only. You scan a membership card or a Costco Shop Card at the pump before fueling; non-members can't buy fuel at Costco.
How do you pay for gas at Costco in Wisconsin?
Costco gas stations in Wisconsin take any Visa credit card, PIN debit, a Costco Shop Card, and Apple Pay or Google Pay linked to a Visa — but not Mastercard, Amex, Discover, or cash at the pump.
What time do Costco gas stations open in Wisconsin?
Hours vary by location, and the gas station usually opens earlier and closes later than the warehouse itself. For example, the gas station at Costco New Berlin runs 6AM – 10PM on weekdays. Check the individual station page for exact hours before a long drive.