Gas Prices in Joliet, IL Today
Updated April 5, 2026 — Prices updated regularly from EIA data
Average Regular Unleaded — Joliet, Illinois
Current Gas Prices in Joliet
The average cost to fill up in Joliet, Illinois is $$3.32 per gallon for regular gas right now. Compared to the national average, Joliet drivers are paying $0.67 below the national average, reflecting local market dynamics.
| Fuel Type | Price / Gallon | Grade | Trend |
|---|---|---|---|
| Regular Unleaded | $3.32 | 87 octane | ▲ Rising |
| Mid-Grade | $3.84 | 89 octane | ▲ Rising |
| Premium | $4.15 | 91-93 octane | ▲ Rising |
| Diesel | $4.49 | N/A | ▲ Rising |
Price Comparison
About Gas Prices in Joliet
The Joliet fuel market reflects Illinois's broader pricing environment while adding local demand characteristics. With a growing population and rising commuter traffic, demand pressure in Joliet is steady. Warehouse club stations and discount brands regularly beat street prices by 10-20 cents per gallon.
Gas Prices by Brand in This City
Estimated prices based on brand modifiers. Sorted cheapest to most expensive.
Fuel Type Prices in This City
Gas Prices in Nearby Cities
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