Costco Portland Gas Prices – 138th Ave
- Regular · today
- $4.589▲ +$0.090
- Premium · today
- $5.159▼ −$0.040
- Diesel · today
- $6.499▲ +$0.100
USD per gallon · Last updated October 31, 2026
4849 NE 138th Ave, Portland, OR 97230-3401 · Open in Maps ↗
30-day range
where today sits- Regular$4.589 today · avg $4.728$4.499 low$4.899 high
- Premium$5.159 today · avg $5.303$5.099 low$5.499 high
- Diesel$6.499 today · avg $6.522$6.399 low$6.579 high
Price history at Portland
Last 30 days · USD per gallonRegular: $4.839 on Oct 2 to $4.589 on Oct 31, low $4.499, high $4.899. Premium: $5.499 on Oct 2 to $5.159 on Oct 31, low $5.099, high $5.499. Diesel: $6.559 on Oct 2 to $6.499 on Oct 31, low $6.399, high $6.579.
Last updated October 31, 2026. Prices are collected once daily and can lag same-day changes at the pump.
Today’s price in context
At $4.589 for Regular, Portland is the 2nd most expensive of 13 Costco gas stations in Oregon today, $0.147 above the Oregon average of $4.442.
E Vancouver WA, 5.0 mi away, is $0.200 cheaper.
- vs the US average
- $0.314 above, at $4.275
- Premium over Regular
- $0.570 — the Oregon median is $0.440
- Regular over the last 30 days
- down $0.250
- Days the price changed
- 12 of 30 reported days
- Latest day at the 30-day low
- October 30, 2026, at $4.499
- 15-gallon fill
- $68.84, $1.35 more than at the 30-day low
- Nearest cheaper station
- E Vancouver WA — 5.0 mi
Portland is located at 4849 NE 138th Ave, Portland, OR 97230-3401, in Oregon. The gas station sits in the warehouse parking lot and is open to Costco members, selling Regular, Premium and Diesel. Gas station hours are 6 a.m. – 10 p.m. on weekdays, 6 a.m. – 8:30 p.m. on Saturdays and 6 a.m. – 7:30 p.m. on Sundays, in local time.
Station details
Portland Gas station hours
- Mon–Fri
- 6 a.m. – 10 p.m.
- Saturday
- 6 a.m. – 8:30 p.m.
- Sunday
- 6 a.m. – 7:30 p.m.
Portland Warehouse hours
- Mon–Fri
- 10 a.m. – 8:30 p.m.
- Saturday
- 9:30 a.m. – 7 p.m.
- Sunday
- 10 a.m. – 6 p.m.
Cities near Portland
- Costco gas prices Camas · WA · 5 mi$4.389
- Costco gas prices Clackamas · OR · 9 mi$4.299
- Costco gas prices Vancouver · WA · 10 mi$4.359
- Costco gas prices Tigard · OR · 14 mi$4.299
- Costco gas prices Aloha · OR · 16 mi$4.559
- Costco gas prices Wilsonville · OR · 19 mi$4.459
- Costco gas prices Ridgefield · WA · 20 mi$4.499
- Costco gas prices Hillsboro · OR · 20 mi$4.459
At this location
- Warehouse opened
- October 1983
- Warehouse phone
- (503) 252-2243
- Pumps open early
- 4 hours before the warehouse on weekdays
Also at this warehouse: a food court, a pharmacy, an optical department, a hearing aid center and a tire center.
Frequently asked questions
How much is gas at Costco Portland today?
As of October 31, 2026: Regular $4.589, Premium $5.159 and Diesel $6.499 per gallon. Prices are collected once a day, so the pump can differ.
What time does the Costco Portland gas station open?
The pumps are open 6 a.m. – 10 p.m. weekdays, 6 a.m. – 8:30 p.m. Saturdays and 6 a.m. – 7:30 p.m. Sundays, in local time. The pumps open 4 hours before the warehouse on weekdays.
Does the Costco Portland gas station sell diesel?
Yes — diesel is $6.499 per gallon here as of October 31, 2026.
Is Costco Portland cheaper than the average Costco station in Oregon?
No — at $4.589, Regular here is $0.147 above the average Costco price in Oregon, $4.442.
Where is the Costco Portland gas station?
At 4849 NE 138th Ave, Portland, OR 97230-3401. It sits in the Costco warehouse parking lot and is open to members only.
Do you need a Costco membership to buy gas?
Yes — a Gold Star, Executive or Business membership card has to be scanned at the pump before it will dispense, though a Costco Shop Card also works for non-members.
What payment methods does the Costco gas station accept?
Visa, PIN debit and the Costco Shop Card; US Costco fuel pumps take no cash and no Mastercard, American Express or Discover.
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