Portsmouth Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Week Ago Avg. | $3.93 | $3.85 | $4.37 | $4.17 | $2.55 |
| Month Ago Avg. | $3.93 | $3.85 | $4.37 | $4.17 | $2.55 |
Highest Recorded Average Gas Price In Portsmouth Year to Date
| Price | Date | |
|---|---|---|
| Diesel | $4.17 | 06/15/26 |
| Regular | $3.93 | 06/15/26 |
Top 10 Gas Stations & Cheap Fuel Prices in Portsmouth
Marathon in Portsmouth (3008 Scioto Trl)
3008 Scioto Trail, Portsmouth, Ohio,
$4.27
Jul 19, 2026
0¢ Cashback
Marathon in Portsmouth (3008 Scioto Trl)
3008 Scioto TrailPortsmouthOhio45662USA
Speedway in Portsmouth (2401 Gallia St)
2401 Gallia St, Portsmouth, Ohio,
$4.49
Jul 19, 2026
0¢ Cashback
Speedway in Portsmouth (2401 Gallia St)
2401 Gallia StPortsmouthOhio45662USA
Marathon in Portsmouth (1701 OH-139)
1701 OH-139, Portsmouth, Ohio,
$4.59
Jul 19, 2026
0¢ Cashback
Marathon in Portsmouth (1701 OH-139)
1701 OH-139PortsmouthOhio45662USA
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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.