Washington Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Month Ago Avg. | $3.74 | $4.33 | $4.72 | $5.06 | $3.41 |
Highest Recorded Average Gas Price In Washington Year to Date
| Price | Date | |
|---|---|---|
| Diesel | $5.06 | 08/05/26 |
| Regular | $3.74 | 09/01/26 |
Top 10 Gas Stations & Cheap Fuel Prices in Washington
Sunoco in Washington (605 NE 5TH St)
605 NE 5TH St, Washington, Indiana,
$3.59
Oct 24, 2026
0¢ Cashback
Casey's in Washington (2009 E National Hwy)
2009 E National Hwy, Washington, Indiana,
$3.89
Oct 24, 2026
0¢ Cashback
Circle K in Washington (401 E National Hwy)
401 E National Hwy, Washington, Indiana,
$3.94
Oct 24, 2026
0¢ Cashback
Chuckles in Washington (201 N E 5th St)
201 N E 5th St, Washington, Indiana,
$3.99
Oct 24, 2026
0¢ Cashback
Huck's Food & Fuel in Washington (1 Gateway Dr)
1 Gateway Dr, Washington, Indiana,
$4.09
Oct 24, 2026
0¢ Cashback
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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.