St Louis Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Week Ago Avg. | $4.31 | $5.18 | $5.43 | $5.74 | - |
| Month Ago Avg. | $4.31 | $5.18 | $5.43 | $5.74 | - |
Highest Recorded Average Gas Price In St Louis Year to Date
| Price | Date | |
|---|---|---|
| Diesel | $5.74 | 06/15/26 |
| Regular | $4.31 | 06/15/26 |
Top 10 Gas Stations & Cheap Fuel Prices in St Louis
Sunoco in St Louis (102 E Washington St)
102 E Washington St, St Louis, Michigan,
$4.69
Jul 19, 2026
0¢ Cashback
Sunoco in St Louis (102 E Washington St)
102 E Washington StSt LouisMichigan48880USA
Marathon in St Louis (705 E Washington St )
705 E Washington St, St Louis, Michigan,
$6.99
Jul 19, 2026
0¢ Cashback
Marathon in St Louis (705 E Washington St )
705 E Washington StSt LouisMichigan48880USA
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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.