Live Costco Gas Prices Across the United States
Track current prices at all 570 Costco gas stations across 47 U.S. states.
Costco gas prices are consistently among the lowest posted fuel prices in the country, and they change every day. Right now the U.S. average Costco gas price is $3.933 for regular, $4.583 for premium, and $4.968 for diesel — averaged across all 570 Costco gas stations we track in the United States.
Actual prices vary from one warehouse to the next, so the number at your local pump can be a few cents above or below the national average. Use the search box above to check the exact Costco gas price near you, or scroll down for today’s cheapest stations, the state-by-state leaderboard, and the 30-day price trend.
30-day U.S. average price trend
10 cheapest U.S. Costco gas stations
| # | Station | Regular | Premium | Diesel |
|---|---|---|---|---|
| 1 | CarolinaCheapest SAN JUAN, PR | $0.957 | $1.117 | |
| 2 | EVANSVILLE, IN | $2.869 | $3.699 | |
| 3 | AVON, IN | $2.899 | $3.839 | |
| 4 | FORT WAYNE, IN | $2.949 | $3.959 | |
| 5 | INDIANAPOLIS, IN | $2.959 | $3.899 | |
| 6 | INDIANAPOLIS, IN | $2.969 | $3.939 | |
| 7 | INDIANAPOLIS, IN | $2.969 | $3.999 | |
| 8 | TULSA, OK | $2.969 | $3.379 | |
| 9 | TULSA, OK | $2.969 | $3.379 | $3.799 |
| 10 | NOBLESVILLE, IN | $2.989 | $3.999 |
Ranked by average regular price
Cheapest states
- $0.957
- $2.982
- $3.074
- $3.221
- $3.222
Most expensive states
- $4.954
- $4.769
- $4.573
- $4.332
- $4.224
By state
How Costco keeps gas prices low
Costco treats fuel as a membership perk, not a profit center. By buying in bulk and running high-volume stations on slim margins, it can post a Costco gas price that sits below most nearby stations. Because members are already driving to the warehouse, cheap gas keeps foot traffic — and membership renewals — high, so the savings are built into the business model rather than a temporary promotion.
In most U.S. locations you need a valid Costco membership to fuel up, and the pump reads your card before dispensing. The trade-off is simple: you pay an annual membership fee, and in return you get a Costco gas price that can save regular drivers well over that fee each year, plus the same top-tier detergent gasoline sold at major brands.
How we track Costco gas prices?
We check Costco gas prices daily and refresh regular, premium, and diesel for every U.S. warehouse, alongside a 30-day trend so you can see which way prices are heading. Numbers are gathered from publicly available sources and are meant as a guide — the price posted at the pump is always the price you pay. This site is independent and is not affiliated with, endorsed by, or sponsored by Costco Wholesale Corporation.