Colorado vs Nebraska gas prices
Regular gas is $0.21 a gallon cheaper in Nebraska — $3.10 on a 15-gallon fill-up. The two share a border, so that gap is worth knowing before you cross it.
Nebraska| Grade | CO | NE | Diff. | |
|---|---|---|---|---|
| Regular | $4.13 | $3.92 | $0.21NE | Nebraska |
| Midgrade | $4.54 | $4.13 | $0.40NE | Nebraska |
| Premium | $4.87 | $4.64 | $0.24NE | Nebraska |
| Diesel | $5.18 | $4.95 | $0.23NE | Nebraska |
Where the $0.21 gap actually comes from
None of it is tax. This is the case people assume never happens: Colorado is dearer at the pump while taxing a gallon $0.02 less than Nebraska. The whole gap is the cost of the fuel itself — refinery proximity, pipeline access and state blend rules — and the tax difference is quietly shrinking it.
Fuel, refining, distribution and marginFederal and state taxes Pre-tax figures are estimates — see the note below.
What the gap is worth
Based on today’s $0.21 per-gallon difference, which moves week to week. Use the fuel cost calculator for your own mileage and vehicle.
Prices by metro area
State averages hide a lot. These are the cheapest metros AAA reports on each side.
Other comparisons
Frequently asked questions
Is gas cheaper in Colorado or Nebraska?
Regular gas is cheaper in Nebraska, at $3.92 a gallon against $4.13 in Colorado — a gap of $0.21, or 5.3%. On a 15-gallon fill-up that is $3.10. Figures are AAA daily state averages for 2026-08-02.
Why is gas more expensive in Colorado?
Not because of tax — Colorado actually levies $0.02 a gallon less than Nebraska. The whole $0.21 gap, and more, is the cost of the fuel itself: refinery proximity, pipeline access and state fuel-blend rules. Tax policy is narrowing this gap rather than causing it.
Is diesel cheaper in Colorado or Nebraska?
Diesel is cheaper in Nebraska at $4.95 a gallon, against $5.18 in Colorado — $0.23 a gallon apart.
Is it worth crossing from Colorado into Nebraska to fill up?
If you are already near the line, yes: a 15-gallon fill saves about $3.10. Driving out of your way for it rarely pays — at $4.13 a gallon and 25 mpg, a 9-mile round trip would eat the whole saving in fuel alone, before your time.