Colorado · EIA survey Nov 9, 2026
Colorado gas and diesel prices
Regular gasoline $3.746 and diesel $6.206 a gallon this week, including taxes. EIA surveys Colorado gasoline prices directly.
Price history
Colorado vs. its region and the U.S.
| Area | Diesel | Regular | Premium |
|---|---|---|---|
| Colorado | — | $3.746 | $4.465 |
| Rocky Mountain (PADD 4) | $6.206 | $3.946 | $4.638 |
| United States | $6.127 | $3.995 | $5.013 |
| Denver city | — | $3.642 | $4.409 |
Other states in Rocky Mountain (PADD 4)
Home heating fuels in Colorado
EIA collects residential heating oil and propane prices weekly from October through March (monthly in summer).
Colorado fuel taxes
| Gasoline | Diesel | |
|---|---|---|
| State taxes and fees | 30.2¢ | 35.7¢ |
| Federal excise | 18.4¢ | 24.4¢ |
| Total per gallon | 48.6¢ | 60.1¢ |
| Share of this week’s price | 13% | 10% |
| Rank (1 = highest state tax) | 27 of 51 | 20 of 51 |
State rates: Tax Foundation, July 2026 (state statutes); excludes some local and gross-receipts taxes. All states.
Driving electric in Colorado
At Colorado’s average residential rate, home charging costs 63% less per mile than gasoline. Public fast charging usually costs more. Run your own numbers.
Quick answers
What is the average price of gas in Colorado?
$3.746 a gallon for regular in EIA's survey of November 9, 2026, EIA's average for Colorado.
What is the price of diesel in Colorado?
$6.206 a gallon in EIA's survey of November 9, 2026 (Rocky Mountain (PADD 4) regional average; EIA does not publish a weekly diesel price for Colorado alone).
Is fuel in Colorado cheaper than the national average?
Diesel is 7.9¢ above the U.S. average, and regular gasoline 24.9¢ below.
What is the gas tax in Colorado?
30.2¢ a gallon in state taxes on gasoline and 35.7¢ on diesel (Tax Foundation, July 2026), plus the federal 18.4¢ and 24.4¢: 48.6¢ and 60.1¢ in total.
What does propane cost in Colorado?
$2.445 a gallon for residential propane in EIA’s survey of November 9, 2026, up 0.7¢ on the week.
Is it cheaper to drive electric in Colorado?
At 17.17¢ per kWh (EIA residential average) an EV getting 3.5 miles per kWh spends about $4.91 per 100 miles on home charging, against $13.38 for a 28-mpg car at $3.746 gas.
Plan a trip or fleet budget with Colorado prices: trip fuel cost · fleet budget. Source: EIA Gasoline and Diesel Fuel Update.