Washington Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Week Ago Avg. | $4.54 | $4.69 | $4.94 | $4.97 | $4.62 |
| Month Ago Avg. | $4.53 | $4.68 | $4.94 | $4.97 | $4.62 |
Top 10 Gas Stations & Cheap Fuel Prices in Washington
Wheelers Smoke N Gas in Mabton (7453 Sunnyside Mabton Hwy)
7453 Sunnyside Mabton Hwy, Mabton, Washington,
$3.63
May 29, 2026
0¢ Cashback
Maverik in Medical Lake (10707 W State Rd 2)
10707 W State Rd 2, Medical Lake, Washington,
$3.64
May 29, 2026
0¢ Cashback
Chevron in Cusick (418452 State Rte 20)
418452 Hwy 20, Cusick, Washington,
$3.66
May 29, 2026
0¢ Cashback
Yakamart in Toppenish (111 Fort Rd)
111 Fort Rd, Toppenish, Washington,
$3.71
May 29, 2026
0¢ Cashback
NomNom in Spokane (6607 N Nine Mile Rd)
6607 N Nine Mile Rd, Spokane, Washington,
$3.74
May 29, 2026
0¢ Cashback
Cougar Den in White Swan (620 Signal Peak Rd)
620 Signal Peak Rd, White Swan, Washington,
$3.85
May 29, 2026
0¢ Cashback
Petro America in Chehalis (118 US-12)
118 US-12, Chehalis, Washington,
$3.85
May 29, 2026
0¢ Cashback
nomnom in Spokane (1023 W Wellesley Ave)
1023 W Wellesley Ave, Spokane, Washington,
$3.89
May 29, 2026
0¢ Cashback
76 in Wapato (61 W Wapato Rd)
61 W Wapato Rd, Wapato, Washington,
$3.90
May 29, 2026
0¢ Cashback
Wheeler's Kountry Korner in Wapato (2421 W Wapato Rd)
2421 W Wapato Rd, Wapato, Washington,
$3.93
May 29, 2026
0¢ Cashback
Pricing Trends
Find Cheap Gas Prices In USA
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.