Does any Costco in Phoenix sell diesel fuel?

Yes! The North Phoenix Costco at 19001 N 27th Ave (near I-17 and Deer Valley Road) offers diesel fuel in addition to gasoline. This is one of the few Costco diesel locations in the Phoenix metro area.

How many Costco gas stations are in Phoenix?

There are 5 Costco locations in Phoenix. Four of them have gas stations: Paradise Valley, Thomas Road, North Phoenix, and Cave Creek. The Phoenix Business Center on N 33rd Ave does not have a fuel station.

What are Costco gas prices like in Phoenix?

Costco gas prices in Phoenix are consistently among the lowest in the Valley, typically 20 to 40 cents per gallon below nearby name-brand stations. Prices fluctuate with the market, but Costco almost always offers the best value for members.

Costco Gas & Diesel Stations in Phoenix

Phoenix is one of the best cities in the Southwest for Costco fuel, with five warehouse locations inside city limits. Four of those have gas stations, and one — the North Phoenix location on 27th Avenue — offers diesel fuel, making it a key stop for truck drivers, RV owners, and anyone with a diesel vehicle in the Valley of the Sun.

Costco gas prices in Phoenix are consistently among the lowest in Maricopa County. With Phoenix's sprawling layout and long commute distances — many residents drive 30+ miles round trip to work — the savings from filling up at Costco add up quickly. A typical driver can save $300 to $500 per year compared to buying fuel at name-brand stations. And the quality is top-notch: learn more about Costco fuel quality standards in our detailed guide.

Costco Gas Stations in Phoenix

Here's a complete list of Costco fuel locations within Phoenix city limits:

Location	Address	Phone	Gas	Diesel
Paradise Valley	4570 E Cactus Rd Phoenix, AZ 85032	(480) 308-7044	✅ Yes	❌ No
Thomas Road	4502 E Oak St Phoenix, AZ 85008	(602) 808-0101	✅ Yes	❌ No
North Phoenix ⛽	19001 N 27th Ave Phoenix, AZ 85027	(623) 293-4400	✅ Yes	✅ YES
Cave Creek	2450 E Beardsley Rd Phoenix, AZ 85050	(480) 375-2850	✅ Yes	❌ No
Phoenix Bus Ctr	3801 N 33rd Ave Phoenix, AZ 85017	(480) 293-2123	✅ Yes	❌ No

Diesel highlight: The North Phoenix Costco at 19001 N 27th Ave is one of the few locations in the Phoenix metro area that offers diesel fuel. This station is conveniently located near the I-17 freeway, making it easily accessible for drivers coming from north Phoenix, Glendale, Peoria, and other West Valley communities. If you drive a diesel vehicle, this should be your go-to Costco fuel stop.

Tips for Phoenix Costco Gas Stations

Beat the heat: In Phoenix's extreme summer heat, fill up early in the morning or late evening. Gasoline is denser when cool, so you get slightly more fuel for your money.
Avoid rush hour: The Thomas Road and Paradise Valley locations get very busy during rush hour. Try mid-morning or early afternoon on weekdays.
North Phoenix for diesel: If you need diesel, head to the N 27th Ave location. It's the only Costco in Phoenix proper with diesel pumps.

For more diesel-related reading, check out our comparison of Costco diesel vs. Shell diesel or our guide to the best diesel fuel additives for keeping your engine in top shape.

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