Gas Prices in Portland, OR
Updated May 21, 2026 · AAA data · Regular unleaded
Gas Prices in Portland
Portland gas prices are among the highest in the Pacific Northwest outside Seattle, driven by Oregon's 40¢ state tax and Pacific Northwest supply constraints. Costco in Beaverton and Gresham are the metro's price leaders; the Vancouver WA side of the metro (which pays Washington's tax) can run slightly higher.
Prices at individual stations can vary by 5–15 cents within the same city depending on brand, location, and local competition. Use apps like GasBuddy to find the cheapest station near you in Portland.
Frequently Asked Questions
What is the gas price in Portland right now?
The average regular unleaded price in Portland, Oregon is $5.380/gal as of May 21, 2026. Station prices vary — expect a range of roughly $5.280 to $5.500 across the metro area.
Is gas cheaper in Portland OR or Vancouver WA?
They're very close — Oregon's tax (40¢) is similar to Washington's (49¢), so Vancouver WA typically runs slightly higher. The real savings come from Costco on either side of the bridge, which consistently beats local averages by 20-30¢.
Where is cheapest gas in Portland?
Costco in Beaverton is the most frequently cited lowest-price option. Fred Meyer fuel centers with loyalty rewards are competitive throughout the metro. ARCO in Gresham and outer East Portland consistently runs below average.
When is the cheapest day to buy gas in Portland?
Nationwide data shows Monday and Tuesday tend to have slightly lower gas prices before weekly demand picks up. Avoid buying gas Thursday through Saturday when prices are typically higher.