Colorado · week of September 21, 2026
Gas prices in Colorado
Colorado is one of the few states the EIA surveys on its own, and this week regular came in at $4.26 (September 21, 2026). Compared with the U.S. average, that's −22.1¢; week over week, +2.7¢. State and federal taxes together take 48.6¢ from each gallon of gas in Colorado. The state's share is 30.2¢, which places it 27th of 51, while diesel pays 35.7¢ in state taxes.
state survey
$4.257
EIA weekly survey
$4.257state survey
+2.7¢change in a week
+$1.19change in a year
$6.340diesel
30.2¢state gas tax + fees
48.6¢state + federal tax
27th / 51rank for gas tax
The quick take
If you're near the border, compare: New Mexico charges 18.9¢ in state gas taxes and Utah charges 38.6¢, the low and high among Colorado's 6 neighbors.
Cities
Regular gas, weekly average · Colorado
September 30, 2024: $3.446 · September 21, 2026: $4.257 · min $2.188 · max $4.618
The state's gas tax since 2015
| Rate as of | Gasoline | Diesel |
|---|---|---|
| Jul 2026 | 30.2¢ | 35.7¢ |
| Jan 2026 | 29.2¢ | 34.7¢ |
| Jul 2025 | 29.2¢ | 34.7¢ |
| Jan 2025 | 28.2¢ | 30.7¢ |
| Jul 2024 | 28.2¢ | 30.7¢ |
| Jan 2024 | 29.2¢ | 28.1¢ |
| Jul 2023 | 25.9¢ | 27.4¢ |
| Jan 2023 | 23.2¢ | 23.8¢ |
| Jul 2022 | 23.2¢ | 23.8¢ |
| Jan 2022 | 23.6¢ | 22.1¢ |
| Jul 2021 | 23.6¢ | 22.1¢ |
| Jul 2020 | 23.2¢ | 21.8¢ |
| Jan 2020 | 23.2¢ | 21.8¢ |
| Jul 2019 | 22.9¢ | 21.4¢ |
| Jan 2019 | 22.9¢ | 21.4¢ |
| Jul 2018 | 23.2¢ | 21.8¢ |
| Jan 2018 | 23.2¢ | 21.8¢ |
| Jul 2017 | 22.9¢ | 21.4¢ |
| Jan 2017 | 23.2¢ | 21.8¢ |
| Jul 2016 | 23.2¢ | 21.8¢ |
| Jan 2016 | 23.2¢ | 21.8¢ |
| Jul 2015 | 23.2¢ | 21.8¢ |
| Jan 2015 | 23.2¢ | 21.8¢ |
Neighboring states
Kansas25.0¢Nebraska32.7¢New Mexico18.9¢Oklahoma20.0¢Utah38.6¢Wyoming24.0¢
Map
$3.972$4.539$5.106
Regular gas
Region: Rocky Mountain · Gas tax by state · Diesel prices · U.S. average