How gas prices have changed in Illinois in the last week

Stacker compiled statistics on gas prices in Illinois using data from AAA. Gas prices are as of October 2.

Illinois by the numbers
- Gas current price: $4.70
- Week change: -$0.13 (-2.7%)
- Year change: +$1.35 (+40.3%)
- Historical expensive gas price: $5.56 (6/13/22)

- Diesel current price: $6.72
- Week change: -$0.10 (-1.5%)
- Year change: +$2.97 (+79.2%)
- Historical expensive diesel price: $6.83 (9/23/26)

Metros with most expensive gas in Illinois
#1. City of Chicago: $5.10
#2. Alexander County: $4.90
#3. Chicago Metro: $4.78
#4. Davenport-Moline-Rock Island (IL only): $4.75
#5. Peoria-Pekin: $4.74
#6. Quincy: $4.70
#7. Carbondale-Marion: $4.69
#8. Elgin: $4.68
#9. Kankakee-Bradley: $4.66
#10. East Saint Louis: $4.65
#11. Rockford: $4.64
#12. Lake County: $4.64
#13. Decatur: $4.63
#14. Danville: $4.62
#15. Champaign-Urbana: $4.60
#16. Bloomington-Normal: $4.57
#17. Springfield: $4.56