Decatur Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Month Ago Avg. | $4.1 | $4.34 | $4.75 | $3.9 | - |
Highest Recorded Average Gas Price In Decatur Year to Date
| Price | Date | |
|---|---|---|
| Diesel | $3.9 | 08/06/26 |
| Regular | $4.1 | 10/11/26 |
Top 10 Gas Stations & Cheap Fuel Prices in Decatur
Marathon in Decatur (110 MI-51)
110 M-51, Decatur, Michigan,
$4.59
Oct 25, 2026
0¢ Cashback
Marathon in Decatur (110 MI-51)
110 M-51DecaturMichigan49045USA
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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.