Costco Gas Prices in Naperville, IL

Naperville, Illinois has 2 Costco fuel centers serving members in the area. Across Naperville, regular gas averages $4.124 and premium runs about $1.110 higher at $5.234. That's about $0.045 above the Illinois statewide average of $4.079. Within Naperville, Costco Naperville posts the lowest regular at $4.099 and NE Naperville the highest at $4.149 — a $0.050 spread worth checking before you fuel up. Across Naperville, regular pump prices have eased about $0.055 over the past month, from $4.179 a month ago. Premium has eased about $0.040 over the same period. None of the Naperville Costco fuel centers currently sell diesel.