Gas Prices in Arizona Today
Track today's average gas price in Arizona, compare it to the national average, and estimate your fuel costs with a free calculator. Prices come from the EIA's weekly retail gasoline survey.
Average Gas Price for Arizona (EIA West Coast region)
$4.87/gal
60¢ above the national average ($4.27/gal)
EIA weekly price for regular gasoline, week of October 26, 2026.
Estimate Your Gas Cost in Arizona
The calculator below is pre-filled with this West Coast regional average. Enter your trip distance and MPG to get an instant fuel cost estimate.
West Coast Region Gas Price History
The EIA does not publish weekly prices for Arizona, so this chart shows the West Coast regional average for regular gasoline, the same series behind the Arizona price above. The region also covers Alaska, Hawaii, Nevada, and Oregon, so the line describes the region as a whole, not Arizona alone. The latest week is $1.04 a gallon higher than a year earlier.
Latest week
$4.87
October 26, 2026
A year earlier
$3.83
October 27, 2025
Highest week shown
$5.19
May 11, 2026
Lowest week shown
$3.28
January 12, 2026
Source: EIA weekly retail prices for regular gasoline, West Coast regional average, November 4, 2024 to October 26, 2026. Prices in dollars per gallon.
About Gas Prices in Arizona
The U.S. Energy Information Administration (EIA) surveys fuel retailers weekly but doesn't publish a separate price for Arizona, so the price shown is the EIA's West Coast regional average for regular unleaded gasoline. Prices at individual stations in Arizona may be higher or lower depending on location, brand, and local competition.
Several factors influence Arizona's gas price: state fuel taxes, the distance from major refineries, pipeline and distribution infrastructure, and the required seasonal fuel blend. Use the calculator above to see exactly how today's Arizona price affects your commute, road trip, or monthly driving budget.
Arizona Fuel Taxes: 18¢/gal
Arizona has one of the lowest state gas taxes in the nation. Arizona's state gas tax is just 18 cents per gallon — among the lowest in the country and unchanged since the early 1990s. Despite that, Arizona pump prices often run near or above the national average, which surprises many drivers.
Tax figures are approximate state-level taxes and fees per gallon of regular gasoline and exclude the 18.4¢/gal federal excise tax. Rates change, so verify current rates with the state's revenue or transportation department.
How Arizona Gets Its Gasoline
The reason is supply: Arizona has no refineries and gets all of its gasoline by pipeline from two directions — California refineries feeding Phoenix from the west, and Texas/New Mexico refineries feeding the state from the east. When California refineries have problems, Phoenix feels it directly. Phoenix also requires its own Cleaner Burning Gasoline blend in summer, which fewer refineries produce.
Where Gas Is Cheapest and Most Expensive in Arizona
Tucson, which can use conventional gasoline and draws more supply from the El Paso side, is usually the cheapest big city in Arizona — often 20–30 cents below Phoenix. Flagstaff and other northern areas pay a trucking premium.