Does the EIA publish a diesel price for Washington?

No. The EIA weekly on-highway diesel survey covers the United States, five PADDs, three PADD 1 sub-districts, West Coast less California, and California. Washington is not surveyed, so this page shows West Coast less California and labels it as a district figure.

What is the diesel tax in Washington?

Washington's state diesel tax is 49.4 cents per gallon. Combined with the federal diesel tax of 24.4 cents per gallon, the total tax on a gallon of diesel in Washington is 73.8 cents, or 13 percent of the price shown above. Tax rates come from the Federation of Tax Administrators, not from EIA.

EIA Weekly On-Highway Diesel Survey - week of August 31, 2026

Diesel cost per gallon in Washington

$5.87/GAL

+0.27 vs US average ($5.60)EIA West Coast less CaliforniaDistrict #8 of 9

Read this as a district figure, not a state figure. The EIA weekly on-highway diesel survey prices the United States, its districts and California, and nothing else. It does not price Washington. The number above is West Coast less California, series EMD_EPD2D_PTE_R5XCA_DPG, and it is the closest published federal figure for Washington. We do not estimate a price for Washington from it. 1 of Washington's neighbouring states sit in the same district and therefore show the same price below.

EIA does not publish a weekly on-highway diesel price for Washington. The federal survey prices the district Washington sits in, West Coast less California, at $5.872 per gallon in the week of August 31, 2026 (series EMD_EPD2D_PTE_R5XCA_DPG), $0.27 above the US average of $5.599. Pump prices inside the district vary around that figure.

Diesel tax breakdown

Federal diesel excise tax24.4c/gal

Washington state diesel tax49.4c/gal

Total tax73.8c/gal

Tax as percent of the price above13%

Tax rates: Federation of Tax Administrators state motor fuel table and state revenue departments. Not EIA data. The percentage is against the EIA figure shown above, which is a district figure unless Washington is surveyed directly.

Neighbouring states

Oregon

same district$5.87

Idaho

Rocky Mountain (PADD 4)$5.55

Neighbours in the same EIA district carry the same published figure. A matching price here means the federal survey shows no measured gap across that border, not that pumps are identical.

CALCULATE YOUR FUEL COST IN WASHINGTON

The trip calculator starts at $5.87/gal, the EIA figure above. Change it to the price you actually see at the pump for a real answer.

Open trip calculator ->

Sources: price from the EIA Weekly On-Highway Diesel Fuel Price survey, week of August 31, 2026, series EMD_EPD2D_PTE_R5XCA_DPG, a U.S. Government work in the public domain. EIA publishes no diesel price for 49 of the 50 states on this site, California being the exception; those pages show the EIA district figure and say so. State tax from the Federation of Tax Administrators. Actual pump prices vary by retailer and location.

- US average - All states and districts - Trip calculator - Diesel vs gas - Fleet cards

Ask how a number on this page was built

Every figure on this site is read out of a published federal survey, which means there is always a real answer to where it came from. Send the question and a person reads it. Answers name the table, the series and the survey week, so you can go and look at the same row we did.

Where a question shows up a gap, the answer goes onto the page it came from as well as into the reply. If your question and its answer would be useful to other drivers we may publish an anonymised version, and we ask you before we do.

SOURCE: EIA Weekly On-Highway Diesel Fuel Price survey
WELCOME: how a figure is built, what moves it, where a state tax number comes from
NOT HERE: buying, hedging and fuel-tax decisions, which are yours or your accountant's
NOT LIVE: no page here is a live pump price, and the pump is the one that counts