Dekalb Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Week Ago Avg. | $4.03 | $4.56 | $4.96 | $4.8 | $3.72 |
| Month Ago Avg. | $4.03 | $4.56 | $4.97 | $4.8 | $3.72 |
Highest Recorded Average Gas Price In Dekalb Year to Date
| Price | Date | |
|---|---|---|
| Diesel | $4.8 | 01/02/26 |
| Regular | $4.03 | 01/02/26 |
Top 10 Gas Stations & Cheap Fuel Prices in Dekalb
Mobil in DeKalb (2700 Crego Rd)
2700 Crego Rd, DeKalb, Illinois,
$3.65
Jan 13, 2026
0¢ Cashback
Shell in DeKalb (175 W Lincoln Hwy)
175 W Lincoln Hwy, DeKalb, Illinois,
$3.65
Jan 13, 2026
3¢ Cashback
Mobil in DeKalb (1740 E Lincoln Hwy)
1740 E Lincoln Hwy, DeKalb, Illinois,
$3.93
Jan 13, 2026
0¢ Cashback
7-Eleven in DeKalb (930 N Annie Glidden Rd)
930 N Annie Glidden Rd, DeKalb, Illinois,
$3.99
Jan 13, 2026
0¢ Cashback
Marathon in DeKalb (1734 Sycamore Rd)
1734 Sycamore Rd, DeKalb, Illinois,
$3.99
Jan 13, 2026
0¢ Cashback
Marathon in DeKalb (933 S 4th St)
933 S 4th St, DeKalb, Illinois,
$4.02
Jan 13, 2026
0¢ Cashback
Marathon in DeKalb (125 N Annie Glidden Rd)
125 N Annie Glidden Rd, DeKalb, Illinois,
$4.07
Jan 13, 2026
0¢ Cashback
Casey's in Dekalb (2131 E Lincoln Hwy)
2131 E Lincoln Hwy, DeKalb, Illinois,
$5.64
Jan 13, 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.