Illinois Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Month Ago Avg. | $4.47 | $4.75 | $5.23 | $5.11 | $3.75 |
Top 10 Gas Stations & Cheap Fuel Prices in Illinois
Road Ranger in Marshall (2003 IL-1)
2003 IL-1, Marshall, Illinois,
$3.46
Sep 10, 2026
0¢ Cashback
Phillips 66 in Oglesby (101 N Marquette Ave)
101 Marquette Ave, Oglesby, Illinois,
$3.47
Sep 10, 2026
0¢ Cashback
Circle K in Champaign (1503 N Neil St)
1503 N Neil St, Champaign, Illinois,
$3.48
Sep 10, 2026
0¢ Cashback
Phillips 66 in Greenup (110 N Haughton Hwy)
110 N Haughton Hwy, Greenup, Illinois,
$3.48
Sep 10, 2026
0¢ Cashback
BP in Oglesby (110 N LEWIS AVE)
110 N Lewis Ave, Oglesby, Illinois,
$3.49
Sep 10, 2026
0¢ Cashback
Road Ranger in Dixon (1801 S Galena Ave)
1801 S Galena Ave, Dixon, Illinois,
$3.52
Sep 10, 2026
0¢ Cashback
Conoco in Mount Carmel (330 N Walnut St)
330 N Walnut St, Mount Carmel, Illinois,
$3.55
Sep 10, 2026
0¢ Cashback
QuikTrip in Edwardsville (2490 Troy Rd)
2490 Troy Rd, Edwardsville, Illinois,
$3.58
Sep 10, 2026
0¢ Cashback
Shell in Marshall (1803 N IL-1)
1803 IL-1, Marshall, Illinois,
$3.59
Sep 10, 2026
3¢ Cashback
BP in Granite City (1525 NIEDRINGHAUS AVE)
1525 Niedringhaus Ave, Granite City, Illinois,
$3.59
Sep 10, 2026
0¢ Cashback
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Gas Data Methodology
The fuel prices published in this guide are based on the results of research completed by Way.com’s data team. Using a mix of external and internal data, we analyzed millions of prices across U.S. ZIP codes and globally.