Boulder Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Month Ago Avg. | $3.96 | $4.46 | $4.67 | $4.88 | $3.14 |
Highest Recorded Average Gas Price In Boulder Year to Date
| Price | Date | |
|---|---|---|
| Diesel | $4.96 | 10/07/26 |
| Regular | $3.98 | 08/15/26 |
Top 10 Gas Stations & Cheap Fuel Prices in Boulder
Conoco in Boulder (2990 Baseline Rd)
2990 Baseline Rd, Boulder, Colorado,
$3.84
Oct 23, 2026
0¢ Cashback
Boulder Gas in Boulder (2700 Baseline Rd)
2700 Baseline Rd, Boulder, Colorado,
$4.32
Oct 23, 2026
0¢ Cashback
Everyday in Boulder (1275 13th St)
1275 13th St, Boulder, Colorado,
$4.34
Oct 23, 2026
0¢ Cashback
King Soopers in Boulder (3005 Arapahoe Ave)
3005 Arapahoe Ave, Boulder, Colorado,
$4.59
Oct 23, 2026
0¢ Cashback
Circle K in Boulder (2995 30th St)
2995 28th St, Boulder, Colorado,
$4.69
Oct 23, 2026
0¢ Cashback
Phillips 66 in Boulder (3375 28th St)
3375 28th St, Boulder, Colorado,
$4.73
Oct 23, 2026
0¢ Cashback
Sinclair in Boulder (4742 Table Mesa Dr)
4742 Table Mesa Dr, Boulder, Colorado,
$4.74
Oct 23, 2026
0¢ Cashback
Conoco in Boulder (5500 Arapahoe Ave)
5500 Arapahoe Ave, Boulder, Colorado,
$4.79
Oct 23, 2026
0¢ Cashback
Circle K in Boulder (1480 Canyon Blvd)
1480 Canyon Blvd, Boulder, Colorado,
$4.84
Oct 23, 2026
0¢ Cashback
Phillips 66 in Boulder (3000 28th St)
3000 28th St, Boulder, Colorado,
$4.87
Oct 23, 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.