Longmont, CO
6 stations
LiveUpdated Jul 15Gas prices near 80504
Longmont, CO · CO average $3.54/gal
Stations near you
1Murphy Express
CheapestCheapest nearby4615 City Centre Rd
Gas Price Check
Longmont, CO · 80504
- Cheapest
- $3.46/gal
- Area avg
- $3.54/gal
You save8¢/gal
Keep exploring
Finding cheap gas in Longmont (80504)
East Longmont stretches toward the Weld County line in this ZIP, reaching out along Highway 119 toward the I-25 interchange and the Del Camino area near Firestone. Longmont straddles the Boulder and Weld county divide, and this eastern side is its growth edge, where newer development meets the open farmland between town and the interstate.
Highway 119 (Ken Pratt Boulevard) is the main artery, and the stations along it and out near the I-25 frontage catch both local drivers and traffic moving between Longmont and the interstate. Those busier stops, including the truck-oriented stations near the freeway, stay competitive on price.
Drivers heading toward I-25 often fill up in town along 119 before reaching the interchange, where the captive stations price for through traffic. The Ken Pratt corridor stations a bit deeper into Longmont tend to be the better deal on this side of town.
Today’s lowest gas prices in 80504
- 1. Conoco at 14015 Mead St offers regular at $3.46/gal (6.7 mi away).
- 2. Circle K at 10963 W I-25 Frontage Rd offers regular at $3.46/gal (3.7 mi away).
- 3. Murphy Express at 4615 City Centre Rd offers regular at $3.46/gal (3.1 mi away).
- 4. 7-Eleven at 3914 CO-119 offers regular at $3.46/gal (3.7 mi away).
- 5. 7-Eleven at 2514 SH 119 offers regular at $3.54/gal (1646.0 mi away).
Prices are aggregated from station-level data and refreshed daily.
Nearby ZIP codes in Longmont, CO
How to save more on gas in Longmont
1. Use warehouse clubs
Costco and Sam’s Club typically price 15-25 cents per gallon below nearby stations. Membership pays for itself within a few fill-ups.
2. Fill up early in the week
Stations often raise prices Thursday for weekend demand. Fill up Monday through Wednesday to avoid the lift.
3. Keep tires properly inflated
Properly inflated tires improve fuel economy by up to 3 percent at current prices. Check pressure once a month.
4. Check back tomorrow
Prices can shift 10-20 cents overnight during volatile markets. A quick check before you leave home avoids paying yesterday’s spike.
5. Pay cash at split-pricing stations
Stations with cash and credit split pricing typically save an average of 10 cents per gallon when you pay cash.
Related guides
Deep-dives on US gas-price topics relevant to this area.
Brand
Buc-ee's gas prices
Johnstown travel-stop location.
Research
When to buy gas: time-of-day and day-of-week patterns
Empirical patterns in retail pump pricing. Tue/Wed cheapest.
Research
Diesel vs gasoline economics in 2026
Why diesel costs more than gas now. Refining yield and global demand.
Directory
US gas station brands directory
Reference for 39 major US gas station chains.
About gas prices in Colorado
Colorado's state gas tax is around 22 cents per gallon, and the Front Range corridor draws fuel from the Suncor refinery in Commerce City plus pipeline supply from Wyoming and Salt Lake City. The state requires an oxygenated winter blend from November through February at high-altitude metros, which adds 5 to 10 cents per gallon during those months. King Soopers (Kroger), Costco, and Sam's Club are the dependable cheap options across Denver, Colorado Springs, and Fort Collins. Mountain resort towns (Aspen, Vail, Breckenridge) typically run 30 to 50 cents above Front Range averages due to long supply hauls and limited local competition (no Costco or Sam's Club within 50 miles of Aspen).