Costco gas prices in Illinois
Illinois average
- Regular
- $4.028
- Premium
- $5.157
Average across 23 stations, per gallon · updated July 22, 2026
Costco has 23 gas stations in Illinois — the cheapest regular today is $3.749/gal at Costco Lake Zurich in Lake Zurich. Illinois Costco regular prices have climbed about $0.240 per gallon over the past month, from $3.788 to $4.028. Premium is up $0.316 over the same stretch, now at $5.157.
Gas stations
23
Illinois
Avg regular
$4.028
per gallon, USD
Cheapest now
$3.749
Costco Lake Zurich
30-day price trend
Regular$4.028Premium$5.157
View price history as a table
| Date | Regular | Premium |
|---|---|---|
| July 22, 2026 | $4.028 | $5.157 |
| July 21, 2026 | $3.982 | $5.116 |
| July 20, 2026 | $3.967 | $5.093 |
| July 19, 2026 | $3.955 | $5.086 |
| July 18, 2026 | $3.936 | $5.073 |
| July 17, 2026 | $3.925 | $5.059 |
| July 16, 2026 | $3.910 | $5.035 |
| July 15, 2026 | $3.902 | $5.032 |
| July 14, 2026 | $3.909 | $5.048 |
| July 13, 2026 | $3.915 | $5.046 |
| July 12, 2026 | $3.869 | $4.999 |
| July 11, 2026 | $3.863 | $4.994 |
| July 10, 2026 | $3.782 | $4.932 |
| July 9, 2026 | $3.728 | $4.852 |
| July 8, 2026 | $3.648 | $4.767 |
| July 7, 2026 | $3.684 | $4.802 |
| July 6, 2026 | $3.700 | $4.794 |
| July 5, 2026 | $3.746 | $4.829 |
| July 4, 2026 | $3.723 | $4.809 |
| July 3, 2026 | $3.744 | $4.819 |
| July 2, 2026 | $3.785 | $4.867 |
| July 1, 2026 | $3.799 | $4.851 |
| June 30, 2026 | $3.790 | $4.856 |
| June 29, 2026 | $3.812 | $4.873 |
| June 28, 2026 | $3.831 | $4.897 |
| June 27, 2026 | $3.823 | $4.900 |
| June 26, 2026 | $3.813 | $4.882 |
| June 25, 2026 | $3.796 | $4.866 |
| June 24, 2026 | $3.781 | $4.850 |
| June 23, 2026 | $3.788 | $4.841 |
Cities with multiple stations
All stations in Illinois
All 23 stations, sorted by regular price from lowest to highest. Prices in $/gal.
| Rank | Station | Regular | Premium |
|---|---|---|---|
| 1 | Costco Lake ZurichLake Zurich | $3.749 | $4.999 |
| 2 | Costco ChampaignChampaign | $3.899 | $4.899 |
| 3 | Costco PlainfieldPlainfield | $3.899 | $5.019 |
| 4 | Costco Loves ParkLoves Park | $3.929 | $4.999 |
| 5 | Costco Lake In The HillsLake In The Hills | $3.949 | $5.169 |
| 6 | Costco North Riverside ILNorth Riverside | $3.949 | $5.099 |
| 7 | Costco Orland ParkOrland Park | $3.949 | $5.069 |
| 8 | Costco BloomingdaleBloomingdale | $3.969 | $5.199 |
| 9 | Costco Oak BrookOak Brook | $3.979 | $5.099 |
| 10 | Costco East PeoriaEast Peoria | $3.999 | $4.869 |
| 11 | Costco Melrose ParkMelrose Park | $3.999 | $5.099 |
| 12 | Costco Mt ProspectMount Prospect | $3.999 | $5.199 |
| 13 | Costco NilesNiles | $3.999 | $5.159 |
| 14 | Costco YorkvilleYorkville | $3.999 | $5.149 |
| 15 | Costco St CharlesSaint Charles | $4.029 | $5.059 |
| 16 | Costco MettawaMettawa | $4.059 | $5.199 |
| 17 | Costco BolingbrookBolingbrook | $4.099 | $5.259 |
| 18 | Costco NapervilleNaperville | $4.099 | $5.169 |
| 19 | Costco NE NapervilleNaperville | $4.099 | $5.199 |
| 20 | Costco GlenviewGlenview | $4.149 | $5.299 |
| 21 | Costco SchaumburgSchaumburg | $4.149 | $5.199 |
| 22 | Costco Chicago South LoopChicago | $4.299 | $5.599 |
| 23 | Costco Lincoln ParkChicago | $4.399 | $5.599 |
Showing 1–10 of 23 stations