Costco Illinois Gas Prices
Find the cheapest Costco gas in Illinois— every fuel center ranked by today's price.
23 Costco fuel centers in 21 cities · 0 of 23 sell diesel
Costco operates 23 fuel centers in Illinois across 21 cities, with the largest cluster in Chicago (2 stations). Across the state, regular gas averages $4.079 and premium runs about $1.103 higher at $5.182. The lowest-priced regular pump is at Costco Mettawa in Mettawa at $3.929, while Lincoln Park in Chicago sits about $0.620 higher. Across the state, regular pump prices have eased about $0.120 over the past month, from $4.199 a month ago. Premium has eased about $0.133 over the same period.
If your vehicle takes premium, the lowest in Illinois is Costco East Peoria in East Peoria at $4.939. 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 Illinois average price trend
Browse Illinois cities
All Illinois stations by price
| Station | Regular | Premium |
|---|---|---|
| Mettawa Mettawa | $3.929 | $5.159 |
| Loves Park Loves Park | $3.949 | $4.989 |
| Plainfield Plainfield | $3.959 | $5.099 |
| East Peoria East Peoria | $3.969 | $4.939 |
| Yorkville Yorkville | $3.969 | $5.099 |
| Bloomingdale Bloomingdale | $3.999 | $5.159 |
| Lake In The Hills Lake In The Hills | $3.999 | $5.099 |
| Lake Zurich Lake Zurich | $3.999 | $5.099 |
| Melrose Park Melrose Park | $3.999 | $5.159 |
| Schaumburg Schaumburg | $3.999 | $5.099 |