Costco Gas Prices in Naperville, IL

Naperville, Illinois has 2 Costco fuel centers serving members in the area. Across Naperville, regular gas averages $4.809 and premium runs about $1.10 higher at $5.909. That's about $0.01 above the Illinois statewide average of $4.799. Within Naperville, Costco Naperville posts the lowest regular at $4.739 and NE Naperville the highest at $4.879 — a $0.14 spread worth checking before you fuel up. Across Naperville, regular pump prices have climbed about $0.55 over the past two weeks, from $4.259 two weeks ago. Premium has climbed about $0.63 over the same period. None of the Naperville Costco fuel centers currently sell diesel.