Gas prices in Boulder-Longmont
Daily metro average from AAA (2026-07-28), per gallon including taxes, for the Boulder-Longmont area of Colorado.
Boulder-Longmont runs $0.23 a gallon above the Colorado average of $3.90. It is the 7 cheapest of 10 Colorado metros AAA tracks.
Nearest Colorado metros on price
The metros immediately either side of Boulder-Longmont in Colorado, so you can see whether paying $4.13 here is normal or not.
| Metro | Regular | vs Boulder-Longmont |
|---|---|---|
| Greeley | $4.00 | −$0.13 |
| Denver | $4.04 | −$0.08 |
| Fort Collins-Loveland | $4.05 | −$0.08 |
| Grand Junction (CO only) | $4.11 | −$0.02 |
| Boulder-Longmont | $4.13 | — |
| Vail | $4.35 | +$0.22 |
| Durango | $4.39 | +$0.26 |
| Glenwood Springs | $4.59 | +$0.47 |
State average, trend, station map and calculators.
Your own area's price and a live map of the stations around you.
Frequently asked questions
How much is gas in Boulder-Longmont right now?
Regular gasoline averages $4.13 per gallon across Boulder-Longmont today (AAA metro average, 2026-07-28). Midgrade is $4.59, premium $4.95 and diesel $5.26.
Is gas cheaper in Boulder-Longmont than the rest of Colorado?
No — Boulder-Longmont runs $0.23 a gallon above the Colorado average of $3.90.
Where does Boulder-Longmont rank in Colorado?
Boulder-Longmont is the 7th cheapest of 10 Colorado metros AAA tracks.
Are gas prices in Boulder-Longmont higher than a year ago?
Yes — regular is 33.6% higher than this time last year ($3.09/gal then, $4.13 now).