Gas Prices in Boulder, CO
Updated April 5, 2026 · AAA data · Regular unleaded
Why Gas Prices in Boulder Vary
Gas prices in Boulder reflect a mix of local taxes, distance to fuel distribution terminals, station density, and real estate costs. As an urban market, Boulder typically runs 5¢ above the Colorado statewide average.
Prices at individual stations can vary by 5–15 cents within the same city depending on brand, location, and local competition. Use apps like GasBuddy to find the cheapest station near you in Boulder.
Frequently Asked Questions
What is the gas price in Boulder right now?
The average regular unleaded price in Boulder, Colorado is $3.880/gal as of April 5, 2026. Station prices vary — expect a range of roughly $3.780 to $4.000 across the metro area.
Is gas cheaper in Boulder or the suburbs?
Generally, suburban areas outside Boulder have slightly lower gas prices due to lower operating costs and property taxes. If you're near a highway interchange or warehouse district, you may find lower prices than the city center.
When is the cheapest day to buy gas in Boulder?
Nationwide data shows Monday and Tuesday tend to have slightly lower gas prices before weekly demand picks up. Avoid buying gas Thursday through Saturday when prices are typically higher.