St Charles Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Week Ago Avg. | $4.64 | $4.78 | $5.18 | $5.29 | - |
| Month Ago Avg. | $4.23 | $4.55 | $4.95 | $4.82 | - |
Highest Recorded Average Gas Price In St Charles Year to Date
| Price | Date | |
|---|---|---|
| Diesel | $5.29 | 06/15/26 |
| Regular | $4.64 | 06/15/26 |
Top 10 Gas Stations & Cheap Fuel Prices in St Charles
Marathon in St Charles (143 W Belle Ave)
143 W Belle Ave, St Charles, Michigan,
$4.59
Jul 07, 2026
0¢ Cashback
Marathon in St Charles (143 W Belle Ave)
143 W Belle AveSt CharlesMichigan48655USA
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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.