Costco South Dakota Gas Prices
Find the cheapest Costco gas in South Dakota— every fuel center ranked by today's price.
1 Costco fuel centers in 1 city · 0 of 1 sell diesel
Costco operates 1 fuel center in South Dakota, all in Sioux Falls. Across the state, regular gas averages $3.299 and premium runs about $0.90 higher at $4.199. Across the state, regular pump prices have eased about $0.30 over the past month, from $3.599 a month ago. Premium has eased about $0.30 over the same period.
If your vehicle takes premium, the lowest in South Dakota is Costco Sioux Falls in Sioux Falls at $4.199. 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 South Dakota average price trend
Browse South Dakota cities
All South Dakota stations by price
| Station | Regular | Premium |
|---|---|---|
| Sioux Falls Sioux Falls | $3.299 | $4.199 |
Frequently asked questions
Which Costco has the cheapest gas in South Dakota?
As of the latest daily update, Costco Sioux Falls in Sioux Falls has the cheapest regular gas in South Dakota at $3.299 USD per gallon. Pump prices change daily, so check the ranking on this page for the current order.
How much is Costco gas in South Dakota right now?
Across the 1 Costco fuel center in South Dakota, regular averages $3.299 USD per gallon and premium $4.199. 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 South Dakota?
None of the 1 Costco fuel center in South Dakota currently report a diesel price. Diesel availability varies by warehouse — check individual station pages for the latest.
Is Costco gas in South Dakota cheaper than average?
South Dakota Costco regular averages $3.299, about $0.52 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 South Dakota?
Yes — Costco gas stations in South Dakota 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 South Dakota?
Costco gas stations in South Dakota 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 South Dakota?
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 Sioux Falls runs 6AM – 10PM on weekdays. Check the individual station page for exact hours before a long drive.