Costco Kennewick Gas Prices – W. Gage Blvd
- Regular · today
- $4.899▼ −$0.040
- Premium · today
- $5.399▼ −$0.040
USD per gallon · Last updated October 31, 2026 · This station does not sell diesel
8505 W. Gage Blvd, Kennewick, WA 99336-8120 · Open in Maps ↗
30-day range
where today sits- Regular$4.899 today · avg $5.047$4.899 low$5.199 high
- Premium$5.399 today · avg $5.535$5.359 low$5.699 high
Price history at Kennewick
Last 30 days · USD per gallonRegular: $5.199 on Oct 2 to $4.899 on Oct 31, low $4.899, high $5.199. Premium: $5.699 on Oct 2 to $5.399 on Oct 31, low $5.359, high $5.699.
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 $4.899 for Regular, Kennewick is tied for the 4th most expensive of 34 Costco gas stations in Washington today, $0.219 above the Washington average of $4.680.
Union Gap, 64.6 mi away, is $0.540 cheaper.
- vs the US average
- $0.624 above, at $4.275
- Premium over Regular
- $0.500 — the Washington median is $0.600
- Regular over the last 30 days
- down $0.300
- Days the price changed
- 11 of 30 reported days
- Latest day at the 30-day low
- today, at $4.899
- 15-gallon fill
- $73.48 — the cheapest it has been in 30 days
- Nearest cheaper station
- Union Gap — 64.6 mi
Kennewick is located at 8505 W. Gage Blvd, Kennewick, WA 99336-8120, in Washington. The gas station sits in the warehouse parking lot and is open to Costco members, selling Regular and Premium — this location does not sell 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
Kennewick 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.
Kennewick 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 Kennewick
- Costco gas prices Richland · WA · 5 mi$4.929
- Costco gas prices Union Gap · WA · 65 mi$4.359
- Costco gas prices East Wenatchee · WA · 95 mi$4.699
- Costco gas prices Clarkston · WA · 105 mi$4.269
- Costco gas prices Spokane · WA · 136 mi$4.599
At this location
- Warehouse opened
- July 1987
- Warehouse phone
- (509) 737-8861
- 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 Kennewick today?
As of October 31, 2026: Regular $4.899 and Premium $5.399 per gallon. Prices are collected once a day, so the pump can differ.
What time does the Costco Kennewick 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 Kennewick gas station sell diesel?
No — this station sells Regular and Premium, and has reported no diesel price in the last 30 days.
Is Costco Kennewick cheaper than the average Costco station in Washington?
No — at $4.899, Regular here is $0.219 above the average Costco price in Washington, $4.680.
Where is the Costco Kennewick gas station?
At 8505 W. Gage Blvd, Kennewick, WA 99336-8120. 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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