Mercer Island Gas Prices - Find the Lowest Gas Prices in Mercer Island, WA

Search for the lowest gasoline prices in Mercer Island, WA. Find local Mercer Island gas prices and Mercer Island gas stations with the best prices to fill up at the pump today

National and Washington Gas Price Averages

National Avg.WA Reg. Avg.WA Plus Avg.WA Prem. Avg.WA Diesel Avg.
$3.163
05/30/2025
$4.422
05/30/2025
$4.671
05/30/2025
$4.892
05/30/2025
$4.673
05/30/2025

Today's lowest gas prices in Washington and around Mercer Island

StationRegularPlusPremiumDiesel
Costco
301 5th St, Clarkston, WA
$3.27
05/30/2025
05/30/2025
$3.66
05/30/2025
$3.69
05/30/2025
Wheeler's Kountry Korner
2421 W Wapato Rd, Wapato, WA
$3.88
05/30/2025
05/30/2025
05/30/2025
05/30/2025

Find all gas prices in and around Mercer Island, WA.

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