Gas Prices in Joliet, IL
Updated April 5, 2026 · AAA data · Regular unleaded
Why Gas Prices in Joliet Vary
Gas prices in Joliet reflect a mix of local taxes, distance to fuel distribution terminals, station density, and real estate costs. As an urban market, Joliet typically runs 4¢ above the Illinois statewide average.
Prices at individual stations can vary by 5–15 cents within the same city depending on brand, location, and local competition. Use apps like GasBuddy to find the cheapest station near you in Joliet.
Frequently Asked Questions
What is the gas price in Joliet right now?
The average regular unleaded price in Joliet, Illinois is $4.320/gal as of April 5, 2026. Station prices vary — expect a range of roughly $4.220 to $4.440 across the metro area.
Is gas cheaper in Joliet or the suburbs?
Generally, suburban areas outside Joliet have slightly lower gas prices due to lower operating costs and property taxes. If you're near a highway interchange or warehouse district, you may find lower prices than the city center.
When is the cheapest day to buy gas in Joliet?
Nationwide data shows Monday and Tuesday tend to have slightly lower gas prices before weekly demand picks up. Avoid buying gas Thursday through Saturday when prices are typically higher.