Gas Prices Jump to $4.36 a Gallon as the National Average Rises 40 Percent in a Year

• The national average for regular gas hit $4.3585 a gallon on October 11, up more than 40 percent from a year ago, according to AAA’s daily tracker.
• California drivers pay the most at $6.3069 a gallon, while Georgia sits lowest at $3.8135, a gap of nearly $2.50 between the two states.
• The run-up traces back to the US conflict with Iran, which has kept oil markets on edge for months and pushed diesel to a national average of $6.2771 a gallon.

A Fill-Up Now Costs 40 Percent More Than Last October

Gas prices have climbed back to levels Americans have not paid at the pump in years. AAA’s daily fuel tracker put the national average for a gallon of regular at $4.3585 on October 11, against $3.1005 on the same day last year, a jump of $1.2664, or about 41 percent. For a driver filling a 15-gallon tank twice a month, that works out to roughly $38 more every month than a year ago, money that has to come from somewhere else in the household budget.

The increase has not hit every state the same way, and knowing where your state sits can shape decisions as simple as where to fill up on a road trip or as significant as whether a long commute still makes financial sense.

Where the Pain Is Worst, and Where It Is Not

California remains the most costly state in the country at $6.3069 a gallon, a figure driven by the state’s own fuel taxes, environmental fees and a limited number of refineries that supply the West Coast. Hawaii follows at $5.6367, largely a function of shipping every drop of fuel across the Pacific, and Washington state sits close behind at $5.4525. Nevada rounds out the most expensive group at $5.4403.

At the other end, Georgia drivers pay the least in the country at $3.8135, with Texas close behind at $3.8249 and Ohio at $3.8907. The gap between the cheapest and most costly state now runs to nearly $2.50 a gallon, which on a cross-country drive can add well over $100 to the fuel bill depending on the route taken. Here is the full rundown, state by state, as of October 11:

• California: $6.3069
• Hawaii: $5.6367
• Washington: $5.4525
• Nevada: $5.4403
• Oregon: $5.0046
• Alaska: $5.0223
• Utah: $4.8256
• Idaho: $4.8963
• Arizona: $4.7068
• Illinois: $4.7098
• Georgia: $3.8135
• Texas: $3.8249
• Ohio: $3.8907
• Indiana: $3.9155
• Mississippi: $3.9342

Why Prices Have Stayed This High for Months

The main driver behind this year’s run-up is the US conflict with Iran, which has kept global oil markets unsettled for most of 2026. Reporting earlier this year found Americans had already paid billions of dollars more at the pump within a single month of the fighting starting, and prices have stayed stubbornly high rather than settling back down the way a short-lived spike normally would. A gallon that cost just over $3 a year ago has climbed through $4 multiple times this year, and the current $4.3585 average shows little sign of a quick retreat.

Diesel has moved even further. The national average for diesel sits at $6.2771 a gallon, a figure that touches far more than long-haul truckers. Diesel fuels the trucks that stock grocery shelves, the trains that haul freight, and the equipment that builds roads and homes, so a sustained rise in diesel tends to work its way into the price of almost everything else over the following months.

How This Compares to Past Price Spikes

Americans have seen gas prices spike before, but most past spikes corrected within a few months once the triggering event passed. The 2022 run-up tied to the start of the war in Ukraine pushed the national average above $5 for a stretch, then eased back under $4 within about six months as supply adjusted. What makes the current stretch different is duration. Prices have now stayed elevated for the better part of a year, which points to a market that has priced in a long conflict rather than a short shock.

That distinction changes household budgeting. A short spike is something many families can absorb by cutting back for a month or two. A spike that lasts closer to a year forces a different kind of decision, the sort that shows up in choices about whether a longer commute still pencils out, whether a second car gets parked more often, or whether a low-consumption vehicle moves up the list the next time someone shops for a replacement.

Who Feels It Hardest

Rural drivers and long-haul commuters absorb a disproportionate share of any national increase. Both groups put more miles on the odometer each week than someone with a short urban commute or access to public transit. A driver covering 25,000 miles a year in a vehicle averaging 25 miles per gallon now spends roughly $4,358 annually on gas at the current national average, compared with about $3,100 a year ago, a difference of well over $1,200 for identical driving habits.

Delivery drivers, rideshare drivers and tradespeople who drive between job sites face the same math without the option of simply driving less. The driving itself is the job. Several rideshare companies have adjusted their per-mile rates upward this year to offset fuel costs, though drivers in lower-cost states have seen smaller adjustments than those working in California or the Pacific Northwest, where pump prices run highest.

What Actually Moves the Needle for Your Own Budget

Gas prices swing by season, by refinery maintenance schedules, and by whatever happens overseas on a given week, and no driver can control any of that. What a driver can control is how much of that swing hits their own wallet. Combining errands into one trip, keeping tires at the correct pressure, which alone can cost a driver a few percent in fuel economy when a tire runs low, and comparing prices with a free app before filling up are the three habits that consistently save real money regardless of where the national average sits.

Drivers who cross state lines regularly for work or errands have a bigger lever available. Someone living near the Nevada-Arizona border, for instance, can save meaningfully by timing fill-ups around whichever side currently runs cheaper. The gap between neighboring states can run well over a dollar a gallon depending on each state’s own fuel tax. Free price-comparison apps update constantly and make this kind of cross-border planning simple rather than guesswork.

What to Watch Next

AAA updates its national and state averages daily, and the figures above reflect prices as of October 11. The federal Energy Information Administration also publishes a separate weekly retail gasoline survey each Monday, which tends to track closely with AAA’s own numbers and offers a useful second check for anyone trying to spot a genuine turning point rather than a single day’s noise. Drivers planning a longer trip in the weeks ahead should check the current state-by-state averages again closer to departure, rather than relying on last month’s numbers. A dollar-plus gap between neighboring states can change the most sensible route for a fill-up. The broader trend depends heavily on how the Iran conflict develops; any sign of a resolution tends to pull oil futures down within days, while renewed fighting has historically pushed pump prices higher within a week or two.

Sources:

• AAA: State Gas Price Averages
• Joint Economic Committee: Cost of the Iran War at the Pump