Gas Prices in Washington Today
Track today's average gas price in Washington, 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 in Washington
$5.20/gal
93¢ above the national average ($4.27/gal)
EIA weekly price for regular gasoline, week of October 26, 2026.
Estimate Your Gas Cost in Washington
The calculator below is pre-filled with today's Washington average price. Enter your trip distance and MPG to get an instant fuel cost estimate.
Washington Gas Price History
Weekly average price of regular gasoline in Washington from the EIA, which surveys Washington retail prices directly. The latest week is 95 cents a gallon higher than a year earlier.
Latest week
$5.20
October 26, 2026
A year earlier
$4.25
October 27, 2025
Highest week shown
$5.59
May 11, 2026
Lowest week shown
$3.65
January 12, 2026
Source: EIA weekly retail prices for regular gasoline, Washington, November 4, 2024 to October 26, 2026. Prices in dollars per gallon.
About Gas Prices in Washington
Gas prices in Washington are reported weekly by the U.S. Energy Information Administration (EIA) from its survey of fuel retailers. The price shown is a statewide average for regular unleaded gasoline. Prices at individual stations in Washington may be higher or lower depending on location, brand, and local competition.
Several factors influence Washington'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 Washington price affects your commute, road trip, or monthly driving budget.
Washington Fuel Taxes: ≈49¢/gal
Washington has one of the highest state gas taxes, plus carbon-program costs. Washington charges about 49.4 cents per gallon in state gas tax, one of the highest flat rates in the country. Since 2023 the state's Climate Commitment Act cap-and-invest program has added a further compliance cost that refiners pass through at the pump — estimates have ranged from roughly 20 to 50 cents per gallon depending on carbon allowance prices.
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 Washington Gets Its Gasoline
Washington's fuel comes mostly from five in-state refineries clustered around Puget Sound (Anacortes, Ferndale, Tacoma), fed by Alaskan and Canadian crude. The state is relatively self-sufficient, but when a Puget Sound refinery has an outage, the whole Pacific Northwest feels it because backup supply has to come by ship or from California.
Where Gas Is Cheapest and Most Expensive in Washington
Seattle and the central Puget Sound metro consistently pay the state's highest prices, while Spokane and eastern Washington — partly supplied from Montana and Utah refineries — typically run 20–40 cents cheaper. The San Juan Islands pay a steep ferry-delivery premium.