Costco Gas Prices in Gilbert, AZ

Gilbert, Arizona has 2 Costco fuel centers serving members in the area. Across Gilbert, regular gas averages $3.449 and premium runs about $0.50 higher at $3.949. That's about $0.03 below the Arizona statewide average of $3.480. Within Gilbert, Costco Gilbert posts the lowest regular at $3.399 and SE Gilbert the highest at $3.499 — a $0.10 spread worth checking before you fuel up. Across Gilbert, regular pump prices have eased about $0.60 over the past month, from $4.049 a month ago. Premium has eased about $0.60 over the same period. None of the Gilbert Costco fuel centers currently sell diesel.