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Washington gas prices this week and price history
Washington has some of the highest prices outside California, with a high state gas tax and a carbon cap-and-invest program.
Last 3 years: Washington vs U.S. average
Regular gasoline, all formulations, retail price including taxes, U.S. dollars per gallon. Hover or tap the chart for weekly values.
All fuel grades this week
| Fuel | This week | Last week | Year ago | U.S. average |
|---|---|---|---|---|
| Regular | $5.377 | $5.424 | $4.357 | $4.331 |
| Midgrade | $5.721 | $5.749 | $4.733 | $4.957 |
| Premium | $5.937 | $5.959 | $4.911 | $5.366 |
EIA does not publish a weekly diesel price for this area.
Price records
- Highest weekly average since 2003: $5.595 (week of May 11, 2026).
- Lowest weekly average in the last 3 years: $3.645 (week of Jan 12, 2026).
- 2026 so far: average $4.932, range $3.645 – $5.595.
Average gas price by year in Washington
| Year | Average | Low | High | vs previous year |
|---|---|---|---|---|
| 2026 (so far) | $4.932 | $3.645 | $5.595 | +$0.798 |
| 2025 | $4.134 | $3.751 | $4.536 | +$0.066 |
| 2024 | $4.068 | $3.747 | $4.547 | −$0.387 |
| 2023 | $4.454 | $3.698 | $4.994 | −$0.122 |
| 2022 | $4.576 | $3.703 | $5.416 | +$1.131 |
| 2021 | $3.446 | $2.602 | $3.806 | +$0.791 |
| 2020 | $2.655 | $2.228 | $2.972 | −$0.458 |
| 2019 | $3.113 | $2.736 | $3.461 | −$0.092 |
| 2018 | $3.204 | $2.886 | $3.452 | +$0.357 |
| 2017 | $2.847 | $2.624 | $3.040 | +$0.381 |
| 2016 | $2.466 | $1.997 | $2.698 | −$0.231 |
| 2015 | $2.698 | $2.109 | $3.180 | −$0.859 |
| 2014 | $3.557 | $2.595 | $4.012 | −$0.087 |
| 2013 | $3.644 | $3.280 | $4.009 | −$0.192 |
| 2012 | $3.835 | $3.368 | $4.299 | +$0.113 |
| 2011 | $3.722 | $3.210 | $4.063 | +$0.708 |
| 2010 | $3.014 | $2.788 | $3.199 | +$0.432 |
| 2009 | $2.582 | $1.845 | $2.960 | −$0.827 |
| 2008 | $3.409 | $1.784 | $4.370 | +$0.439 |
| 2007 | $2.970 | $2.428 | $3.424 | +$0.258 |
| 2006 | $2.712 | $2.155 | $3.157 | +$0.342 |
| 2005 | $2.370 | $1.807 | $2.956 | +$0.419 |
| 2004 | $1.951 | $1.529 | $2.288 | +$0.306 |
| 2003 | $1.645 | $1.502 | $1.951 | – |
FAQ
What is the average gas price in Washington this week?
The latest EIA weekly average for regular gasoline in Washington is $5.377 per gallon (week of Oct 12, 2026).
What was the highest gas price in Washington?
The highest weekly average since 2003 was $5.595 per gallon in the week of May 11, 2026.
Is gas in Washington more expensive than the U.S. average?
This week regular gas in Washington is 24.2 % above the U.S. average of $4.331.
How much has the gas price in Washington changed in a year?
A year ago the average was $4.357; the price has risen by $1.020 per gallon.
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Source: U.S. Energy Information Administration (EIA), Weekly Retail Gasoline and Diesel Prices. Prices are averages of retail outlets surveyed every Monday, not prices at individual stations.