Arizona Gas Prices

What drivers in Arizona are paying this week

Arizona does not have a published weekly statewide average, so the reference number above is the West Coast (PADD 5) average of $5.417. That regional benchmark fell $0.140 week over week and is $1.148 above the national average of $4.269. Stations in Arizona typically trade within roughly 20 to 40 cents of the regional figure, depending on distance from the nearest terminal and local taxes.

Arizona has a modest state fuel tax, but it sits at the end of the West Coast supply chain. Phoenix and Tucson depend heavily on pipelines and trucking from California and Texas, so regional refinery problems show up at the pump quickly.

Why Arizona gas prices land where they do

• Low state excise tax compared with California and Washington.
• Summer heat increases evaporation losses and storage costs.
• Maricopa County requires a cleaner-burning winter blend that costs more to produce.

These are structural factors, not daily noise. They explain why Arizona tends to sit in the same part of the national price range week after week, even when the national average moves. For the general mechanics behind these forces, see our guide on how gas prices are set.

How Arizona compares

Neighboring states with a published weekly average give the clearest picture of the regional spread. The table below compares Arizona against those states and the national average.

Market	Regular price	vs Arizona	Week change
Arizona	$5.417	—	−$0.140
California	$5.888	+$0.471	−$0.140
U.S. average	$4.269	−$1.148	−$0.010

Ways to spend less on gas in Arizona

1. Membership warehouses such as Costco, Sam’s Club, and BJ’s usually price 10 to 30 cents below nearby branded stations.
2. Stations a few miles off the interstate are often cheaper than the first exit, because they pay less for land and rely on local traffic.
3. Apps that show station-level prices are worth using for the last mile — our numbers give you the regional baseline, they give you the address.
4. Keeping tires at the recommended pressure and removing roof racks can recover 3 to 6 percent of fuel economy, which is worth 10 to 20 cents a gallon at current prices.

Want a number instead of a rule of thumb? The commute cost calculator turns your own miles and MPG into a weekly and annual fuel bill, using the current Arizona price as the default.

How we source Arizona prices

Every figure on this page comes from the U.S. Energy Information Administration's weekly retail gasoline survey, which reports average retail prices in dollars per gallon including taxes. We rebuild the page every week after the survey is released, so the date on the price panel always matches the data behind it. We do not estimate missing state numbers; where the EIA does not publish a statewide series, we label the regional benchmark instead. Full details are in our methodology and data sources pages.

The bottom line for Arizona drivers

At the regional benchmark of $5.417 per gallon, a 12-gallon fill-up in Arizona costs about $65.00. Over a 15,000-mile year at 28 MPG, that implies roughly $2902 in fuel, before any local station discounts.