Portola Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Week Ago Avg. | $5.12 | $5.38 | $5.62 | $5.61 | - |
| Month Ago Avg. | $5.12 | $5.38 | $5.62 | $5.61 | - |
Highest Recorded Average Gas Price In Portola Year to Date
| Price | Date | |
|---|---|---|
| Diesel | $5.61 | 06/15/26 |
| Regular | $5.12 | 06/15/26 |
Top 10 Gas Stations & Cheap Fuel Prices in Portola
Valero in Portola (16 E Sierra Ave)
16 E Sierra Ave, Portola, California,
$4.89
Jul 19, 2026
0¢ Cashback
Valero in Portola (16 E Sierra Ave)
16 E Sierra AvePortolaCalifornia96122USA
7-Eleven in Portola (349 E Sierra St)
349 E Sierra Ave, Portola, California,
$6.43
Jul 19, 2026
0¢ Cashback
7-Eleven in Portola (349 E Sierra St)
349 E Sierra AvePortolaCalifornia96122USA
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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.