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LiveUpdated May 21
Gas prices near 92521
Riverside, CA · CA average $5.27/gal
Riverside, CA 92521 residents dealing with California's gas taxes will find current prices vary considerably across town. Check gas-price-check.com regularly since rates shift daily depending on which station you visit. State fuel taxes and refinery costs keep prices higher than many other regions, making it worth comparing before you fill up.
Nearby ZIP codes in Riverside, CA
How to save more on gas in Riverside
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.
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Why California gas prices are the highest in the US
Five structural reasons behind California's 90-cent-per-gallon premium.
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Costco gas prices
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The microeconomics of why same-brand stations across the street price 30 cents apart.
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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.