Gas prices in Colorado today
Regular gas in Colorado averages $4.41 a gallon, 3% more than the U.S. average of $4.27. That makes Colorado in the middle: rank 36 of 51 (1 = cheapest).
| Grade | Colorado | U.S. average | 15-gallon fill-up |
|---|---|---|---|
| Regular | $4.41 | $4.27 | $66 |
| Mid-grade | $4.83 | $4.78 | $72 |
| Premium | $5.17 | $5.17 | $78 |
| Diesel | $6.60 | $6.35 | $99 |
Source: AAA, Colorado average gas prices and AAA State Gas Price Averages, as of Oct 24, 2026. Fill-up = price × 15 gallons (our calculation). For metro-area prices, see AAA's Colorado page.
Taxes in the price: 30.2¢ a gallon in Colorado state taxes and fees plus the 18.4¢ federal tax, 48.6¢ in all, about 11% of today's price (Tax Foundation, July 2026; our calculation). Gas tax in Colorado.
What driving costs in Colorado
At $4.41 a gallon, a car that gets 27.2 mpg (the EPA's average for new vehicles) spends about $162 on gas every 1,000 miles, or 16.2 cents a mile (our calculation). Charging an electric car at Colorado's average home electricity price costs about $53 for the same 1,000 miles. Gas is only one part of the bill: full-coverage car insurance in Colorado averages $2,604 a year.
Planning a drive? The road trip cost calculator uses today's gas price, and the true cost of owning a car puts fuel next to insurance, repairs and depreciation.
Common questions
What is the average gas price in Colorado today?
Regular gas in Colorado averaged $4.41 a gallon on Oct 24, 2026, per AAA. Mid-grade was $4.83, premium $5.17 and diesel $6.60.
Is gas in Colorado cheaper than the national average?
No. Colorado's $4.41 is 3% more than the U.S. average of $4.27, which ranks it 36 of 51 states and DC (1 = cheapest, our ranking of AAA data).
How much does it cost to fill up a car in Colorado?
About $66 for 15 gallons of regular at today's Colorado average (our calculation). Driving 1,000 miles in a car that gets 27.2 mpg costs about $162 in gas.
Is an electric car cheaper to run than gas in Colorado?
At Colorado's average home electricity price, charging an EV for 1,000 miles costs about $53, compared with about $162 in gas for a 27.2 mpg car (our calculation from EIA and AAA prices, 31 kWh per 100 miles from fueleconomy.gov).
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