Diamond Bar Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Week Ago Avg. | $5.3 | $5.26 | $5.32 | $5.9 | $3.19 |
| Month Ago Avg. | $4.84 | $4.96 | $5.16 | $5.26 | $3.19 |
Highest Recorded Average Gas Price In Diamond Bar Year to Date
| Price | Date | |
|---|---|---|
| Diesel | $5.9 | 06/15/26 |
| Regular | $5.3 | 06/15/26 |
Top 10 Gas Stations & Cheap Fuel Prices in Diamond Bar
Chevron in Diamond Bar (21095 Golden Springs Dr)
21095 Golden Springs Dr, Diamond Bar, California,
$5.09
Jul 12, 2026
0¢ Cashback
ARCO in Diamond Bar (3302 S Diamond Bar Blvd)
3302 S Diamond Bar Blvd, Diamond Bar, California,
$5.67
Jul 12, 2026
0¢ Cashback
76 in Diamond Bar (301 S Diamond Bar Blvd)
301 S Diamond Bar Blvd, Diamond Bar, California,
$5.84
Jul 12, 2026
0¢ Cashback
Mobil + Circle K in Diamond Bar (504 N Diamond Bar Blvd)
504 N Diamond Bar Blvd, Diamond Bar, California,
$5.88
Jul 12, 2026
0¢ Cashback
Chevron in Diamond Bar (21324 Pathfinder Rd)
21324 Pathfinder Rd, Diamond Bar, California,
$6.49
Jul 12, 2026
0¢ Cashback
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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.