Midwest · IL
Illinois gas-price averages
Regular · sample average / US gallon
$4.75USD
3,433 locations · Dated sample, not a live pump quote.
The price picture
Illinois fuel-price sample
- Regular median
- $4.70/ gal
- Middle 80% of Regular prices
- $4.40–$5.00
- Regular sample
- 3,433locations
Regular
- Average / gal
- $4.75
- Median / gal
- $4.70
- Middle 80%
- $4.40–$5.00
3,433 locations ·
Midgrade
- Average / gal
- $5.36
- Median / gal
- $5.40
- Middle 80%
- $4.90–$5.71
587 locations ·
Premium
- Average / gal
- $6.00
- Median / gal
- $6.00
- Middle 80%
- $5.48–$6.40
754 locations ·
Diesel
- Average / gal
- $6.57
- Median / gal
- $6.56
- Middle 80%
- $6.30–$7.00
1,355 locations ·
USD per US gallon. Observations were selected within 36 hours before export on . This sample is not a complete market census. Payment and membership conditions can differ; check the actual stop in the planner.
Fuel
Start near Chicago
Use Chicago, Springfield, Peoria as city starting points, then replace the destination with the address you actually need. The city links prefill a destination; they do not choose your start or calculate a trip automatically.
Know before you go
Published Illinois coverage
The published Illinois data update dated October 22, 2026 contains a sample of 3,933 fuel locations. This is a dated update sample, not a complete station census, a count of currently open stations or a guarantee that every location has an eligible price today.
Each trip checks road access, station identity and eligible price observations. Check the age and payment conditions of the result before making a detour. A low pump price can cost more once extra driving is included.
EV Beta
Plan an EV stop in Illinois
Choose your connector, charging power and energy needs before comparing a stop near Chicago. EV Beta compares one charging stop. It does not plan a full journey with multiple charges or confirm a free port in real time.
Know before you go
Before driving in Illinois
Check the Illinois transportation authority for road information and the National Weather Service for your locations. These external resources are independent of WorthStop; conditions can change after planning.