ZIP
12 stations
LiveUpdated May 20
Gas prices near 91764
Ontario, CA · CA average $5.27/gal
Stations near you
Sponsored
via
California drivers pay 94¢/gal more than the US average.
Save up to $1,100/year on auto insurance too.
California drivers compare quotes in under 10 minutes. Real prices from top providers.
Send to a friendSend these prices to a friend
In 91764, Ontario residents benefit from accessing current fuel prices that update throughout the day across local stations. California's gas costs reflect state taxes and refinery capacity, making price tracking essential. Check specific stations in the 91764 area, as prices vary significantly depending on location and fuel grade.
Today’s lowest gas prices in 91764
- 1. Ontario Fuel at 1315 E 4th St offers regular at $5.42/gal (0.3 mi away).
- 2. Ontario Gas & Food at 1066 E 4th St offers regular at $5.43/gal (0.5 mi away).
- 3. Sinclair at 1425 E 4th St offers regular at $5.45/gal (0.1 mi away).
- 4. Sam's Club at 951 N Milliken Ave offers regular at $5.49/gal (5.0 mi away).
- 5. Conserv Fuel at 791 N Milliken Ave offers regular at $5.49/gal (5.0 mi away).
Prices are aggregated from station-level data and refreshed daily.
Nearby ZIP codes in Ontario, CA
How to save more on gas in Ontario
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.
Research
Why California gas prices are the highest in the US
Five structural reasons behind California's 90-cent-per-gallon premium.
Brand
Costco gas prices
California has more Costco fuel locations than any other state.
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 California
California has the highest gas taxes in the nation at roughly 60 cents per gallon when you combine the state excise tax with the cap-and-trade program and underground storage fee. The state requires a special CARB-formulated fuel that only a handful of in-state refineries can produce, so a single refinery outage can spike prices statewide within 48 hours. Costco, Sam's Club, and Arco are typically the cheapest across Los Angeles, San Francisco, San Diego, and Sacramento metros, while Chevron, Shell, and 76 dominate freeway exits. Stations along Interstate 5 and US 101 commonly run 10 to 20 cents higher than equivalent stations a mile off the freeway.