Latest available Costco gas prices for Portland.
Current Gas Prices:
- Regular: $4.759
- Premium: $5.299
- Diesel: $5.599
Last successful update: September 3, 2026 9:39 am GMT+0000.
Location
Address: 4849 NE 138TH AVE, Portland, Oregon 97230-3401
Phone: (503) 252-2243
Opening Hours
Gas Station:
Mon-Fri: 6:00 AM – 10:00 PM
Warehouse:
Mon-Fri: 10:00 AM – 8:30 PM
FAQ About Portland, Oregon
When is the best time to avoid long waits at Portland Costco gas stations?
Portland Costco gas stations tend to be busiest during weekday mornings between 7-9 AM and evenings from 4-6 PM. To avoid the rush, consider fueling mid-morning or early afternoon on weekdays when traffic is lighter.
Do I need a Costco membership and specific payment methods to buy gas in Portland?
Yes, a valid Costco membership is required to purchase fuel at any Portland Costco location. Most stations accept Costco credit cards and major debit cards, but it’s best to bring your membership card and a preferred payment method to ensure a smooth transaction.
What should road-trip drivers heading through Portland check before stopping at Costco for gas?
Drivers should check the current gas prices online or via the Costco app to confirm savings. Also, verify the station’s hours, especially if traveling early or late, and plan for restroom or snack breaks since Portland Costco locations often have convenience items available.
How should I handle it if the line at a Portland Costco gas station looks longer than expected?
If the line is lengthy, consider timing your stop during off-peak hours or visit a nearby Costco. Sometimes splitting your fill-up across two stations or waiting 10-15 minutes can save time compared to sitting in a slow line.
Does weekend timing affect Costco gas station wait times in Portland?
Yes, weekends, especially Saturday mornings and early afternoons, tend to be busier as locals fuel up before activities. Early mornings or late afternoons on weekends usually have shorter lines, so plan accordingly to minimize wait times.
What tips can help keep fueling simple when returning home through Portland Costco stations?
If you’re returning home through Portland, try to fuel up during less busy hours like weekday midday or weekend late afternoon. Have your membership card and payment ready, and consider using Costco’s mobile app to check real-time gas prices and line conditions before arriving.