Washington Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Week Ago Avg. | $2.86 | $3.16 | $3.6 | $3.32 | - |
| Month Ago Avg. | $2.86 | $3.16 | $3.6 | $3.32 | - |
Highest Recorded Average Gas Price In Washington Year to Date
| Price | Date | |
|---|---|---|
| Regular | $2.86 | 03/17/26 |
| Diesel | $3.32 | 01/13/26 |
Top 10 Gas Stations & Cheap Fuel Prices in Washington
Casey's in Washington (113 W 7th St)
113 W 7th St, Washington, Kansas,
$3.16
Mar 26, 2026
0¢ Cashback
Casey's in Washington (113 W 7th St)
113 W 7th StWashingtonKansas66968USA
Find Cheap Gas Prices By State
Click on the state to view the State details
Gas Data Methodology
The fuel prices published in this guide are based on the results of research completed by Way.com’s data team. Using a mix of external and internal data, we analyzed millions of prices across U.S. ZIP codes and globally.