Costco Gas Prices in Tucson, AZ
Costco members in Tucson are paying $3.89/gal for Regular as of Aug 9, 2026 at the Tucson Marketplace station (1650 E Tucson Marketplace Blvd, off I-10 at Kino Pkwy). Arizona gas generally runs cheaper than neighboring California, and Costco is reliably among the lowest-priced stations in the Tucson metro.
Today's Costco Member Gas Prices
Costco Gas Station, 1650 E Tucson Marketplace Blvd, Tucson, AZ. Prices are for Costco members and are updated when station prices change.
Two Costco stations in Tucson
This page tracks the Tucson Marketplace warehouse on the south side. Costco also operates a warehouse with a gas station at 6255 E Grant Rd on the east side; prices at the two stations are usually within a few cents of each other.
Membership and payment
A Costco membership is required to buy gas — scan your card at the pump. U.S. Costco stations take Visa credit cards, most debit cards, and Costco Shop Cards; Mastercard, Amex and cash are not accepted.
Why the price chart matters
We record every price change at this station, so the chart above shows the real trend — Tucson prices tend to move with Arizona refinery cycles, and a few days' patience around a spike can save a few dollars per tank.