Monticello Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Week Ago Avg. | $4.1 | $4.53 | $4.9 | $4.74 | $4.02 |
| Month Ago Avg. | $4.1 | $4.53 | $4.9 | $4.74 | $4.02 |
Highest Recorded Average Gas Price In Monticello Year to Date
| Price | Date | |
|---|---|---|
| Diesel | $4.74 | 06/15/26 |
| Regular | $4.1 | 06/15/26 |
Top 10 Gas Stations & Cheap Fuel Prices in Monticello
Circle K in Monticello (300 W Center St)
300 W Center St, Monticello, Illinois,
$4.99
Jul 19, 2026
0¢ Cashback
Circle K in Monticello (300 W Center St)
300 W Center StMonticelloIllinois61856USA
Circle K in Monticello (802 Iron Horse Pl)
802 Iron Horse Pl, Monticello, Illinois,
$4.99
Jul 19, 2026
0¢ Cashback
Circle K in Monticello (802 Iron Horse Pl)
802 Iron Horse PlMonticelloIllinois61856USA
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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.