Costco Gas Prices

Costco gas stations in Washington

37 Costco fuel stations across 33 cities. US prices are shown in US dollars per gallon.

Washington state average (Nov 5)

Regular
$5.151
Premium
$5.694
Diesel
$7.259

All-station averages published by AAA in US dollars per gallon. Regular is $0.334 lower than about 30 days earlier.

Cities

All Washington Costco stations