Farmington Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Week Ago Avg. | $4.3 | $4.82 | $5.3 | $5.47 | - |
| Month Ago Avg. | $3.96 | $4.31 | $4.61 | $4.1 | - |
Highest Recorded Average Gas Price In Farmington Year to Date
| Price | Date | |
|---|---|---|
| Diesel | $5.47 | 06/15/26 |
| Regular | $4.3 | 06/15/26 |
Top 10 Gas Stations & Cheap Fuel Prices in Farmington
Marathon in Farmington (600 E Fort St)
600 E Fort St, Farmington, Illinois,
$4.99
Jul 12, 2026
0¢ Cashback
Marathon in Farmington (600 E Fort St)
600 E Fort StFarmingtonIllinois61531USA
Circle K in Farmington (1006 E Fort St)
1006 E Fort St, Farmington, Illinois,
$4.99
Jul 12, 2026
0¢ Cashback
Circle K in Farmington (1006 E Fort St)
1006 E Fort StFarmingtonIllinois61531USA
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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.