Updated May 20, 2026 — Prices updated regularly from EIA data
$3.43
Average Regular Unleaded — Naperville, Illinois
Current Gas Prices in Naperville
Gas in Naperville, Illinois is averaging $$3.43 per gallon as of {month} {year}. Whether you drive a truck, sedan, or SUV, finding the best Naperville gas prices can save you hundreds annually.
Fuel Type
Price / Gallon
Grade
Trend
Regular Unleaded
$3.43
87 octane
▼ Falling
Mid-Grade
$3.88
89 octane
▲ Rising
Premium
$4.16
91-93 octane
▬ Stable
Diesel
$4.27
N/A
▼ Falling
Price Comparison
Naperville Average
$3.43
Regular Unleaded
Illinois State Average
$3.36
$0.07 above the Illinois average
National Average
$4.49
$1.06 below the national average
About Gas Prices in Naperville
Naperville's competitive fuel landscape includes stations from virtually every major brand. National chains operate alongside local independents, creating genuine price competition. Use GasBuddy or a similar app to see real-time Naperville prices — the map view typically reveals clusters of low-priced stations that aren't obvious from the road.
Gas Prices by Brand in This City
Estimated prices based on brand modifiers. Sorted cheapest to most expensive.
GasBuddy is the most comprehensive option for Naperville with millions of user-reported prices updated in real time. Waze integrates gas prices into navigation. GetUpside/Upside offers cashback on purchases at qualifying stations.
Each gallon of gas in Naperville, Illinois includes 18.4 cents in federal excise tax plus {tax} cents in Illinois state fuel tax — a combined {totalTax} cents per gallon. On a 15-gallon fill-up, you pay ${taxTotal} in fuel taxes alone.
Today's average gas price in Naperville is $$3.43 per gallon for regular unleaded. Premium is approximately ${premPrice} and diesel runs ${dslPrice}. Individual station prices vary by 15-25 cents across the metro area.
The cheapest gas in Naperville is typically found at warehouse clubs (Costco, Sam's Club), high-volume discount chains like Circle K and Speedway, and stations in commercial strips with multiple competitors. Our brand comparison table shows current estimated prices by major brand in Naperville.
Naperville's current average of $$3.43 compares to the Illinois statewide average of $$3.36. Naperville is $0.07 above the Illinois average the state average, which is typical for a metro of its size and location.
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