Gas prices in Colorado today
Gas stations in Colorado
Stations color-coded by brand — the panel ranks the providers and you can filter to one brand. Move the map anywhere in Coloradoand press “Search this area”.
Explore stations, fuel options and directions.
a gallon more for premium than regular in Colorado. How that compares with every other state, and whether your car needs it.
- Current price $4.13/gal is 1.7% below the 4-week average
- Sits at 80% of the 52-week range ($2.19–$4.62/gal)
The EIA publishes retail diesel by region rather than by state, so the diesel line is the Rocky Mountain series — the closest official series to Colorado. The headline diesel price above is the exact Colorado average from AAA.
Colorado gas prices by metro area
AAA reports separate daily averages for 10 Colorado metros — $0.71 a gallon between the cheapest and the dearest.
AAA metro averages · 2026-09-09
What a tank costs in Colorado, and how much of it is tax
- Compact — 12 gal$51.68
- Sedan / crossover — 15 gal$64.61
- SUV — 20 gal$86.14
- Full-size pickup — 26 gal$111.98
Tax is 11% of the pump price in Colorado. Pre-tax figure is an estimate — state rates as of 2026-01-01.
Colorado compared with neighbouring states
Where the line is worth crossing, and where it is not — each comparison shows how much of the gap is tax rather than the fuel itself.
- Indiana$3.49
- Mississippi$3.77
- Texas$3.77
- Louisiana$3.81
- South Carolina$3.82
- Kansas$3.82
- Oklahoma$3.83
- Tennessee$3.83
- Kentucky$3.84
- Alabama$3.84
- Arkansas$3.85
- Missouri$3.88
- North Carolina$3.90
- Georgia$3.91
- West Virginia$3.97
- Wisconsin$3.97
- Nebraska$4.00
- Virginia$4.03
- North Dakota$4.04
- Iowa$4.06
- Ohio$4.07
- Florida$4.08
- Maryland$4.09
- South Dakota$4.10
- Minnesota$4.15
- New Hampshire$4.19
- District of Columbia$4.21
- New Mexico$4.22
- Michigan$4.23
- Maine$4.24
- Delaware$4.24
- Massachusetts$4.24
- Rhode Island$4.28
- Colorado$4.31
- Vermont$4.31
- New Jersey$4.32
- New York$4.33
- Connecticut$4.36
- Pennsylvania$4.37
- Montana$4.41
- Wyoming$4.41
- Illinois$4.42
- Arizona$4.56
- Utah$4.64
- Idaho$4.72
- Nevada$4.99
- Alaska$5.03
- Oregon$5.06
- Hawaii$5.40
- Washington$5.53
- California$5.88
The answer, in full — and where it comes from
As of 9 September 2026, regular gasoline in Colorado averages $4.31/gal, the state average. Source: Daily fuel gauge report, AAA (a third-party aggregator, published daily). Retrieved by FuelWide on 9 September 2026.
Midgrade gasoline in Colorado averages $4.70/gal. Premium gasoline in Colorado averages $5.05/gal. Diesel in the Rocky Mountain averages $5.65/gal.
- Price:
- $4.31/gal
- Fuel:
- Regular gasoline
- Price basis:
- State average
- Applies to:
- Colorado (state level)
- Measured:
- 2026-09-09
- Retrieved:
- 2026-09-09
- Source:
- AAA — a third-party aggregator
Daily fuel gauge report · State and metro averages: AAA · How we measure this
Frequently asked questions
How much is gas in Colorado right now?
Regular gasoline in Colorado averages $4.31 per gallon today (AAA daily state average). Midgrade is $4.70, premium $5.05 and diesel $5.65.
Is gas in Colorado expensive compared to other states?
Colorado ranks 34 of 51 states from cheapest to most expensive for regular gas this week.
Is gas in Colorado above or below the US average?
Regular in Colorado is 1.3% above the unweighted mean of AAA's 51 state averages ($4.25/gal), measured on 2026-09-09. The EIA publishes a separate, volume-weighted national average weekly; the two are different measurements and will not match.
How much tax is on a gallon of gas in Colorado?
$0.47 a gallon — $0.18 federal plus $0.29 in Colorado state taxes and fees, the 33 highest of 51 states. That is about 11% of the pump price. Rates as of 2026-01-01.
How much does it cost to fill up in Colorado?
At today's average of $4.31 a gallon, a 15-gallon sedan tank costs $64.61 to fill from empty, and a 26-gallon full-size pickup $111.98.
Why this price is what it is
- Premium vs. Regular Gas: Is Premium Actually Worth It?Premium costs more per gallon — but does it help your car? Here's when premium is worth it, when it's wasted money, and what octane really does.
- Fuel Taxes Explained: What You Really Pay Per GallonA big slice of every gallon is tax — but how much, and where does it go? A clear guide to federal, state and European fuel taxes.
- The Best Day and Time to Buy Gas (Backed by Price Data)Studies of billions of transactions point to early in the week as the cheapest time to fill up. Here's the best day, the best time of day, and why it works.