Costco Gas Prices in Naperville, IL

Naperville, Illinois has 2 Costco fuel centers serving members in the area. Across Naperville, regular gas averages $3.759 and premium runs about $1.04 higher at $4.799. That's about $0.01 above the Illinois statewide average of $3.744. Within Naperville, Costco Naperville posts the lowest regular at $3.669 and NE Naperville the highest at $3.849 — a $0.18 spread worth checking before you fuel up. Across Naperville, regular pump prices have eased about $0.64 over the past month, from $4.399 a month ago. Premium has eased about $0.73 over the same period. None of the Naperville Costco fuel centers currently sell diesel.