How gas prices have changed in Illinois in the last week
compiled statistics on gas prices in Illinois using data from . Gas prices are as of July 31.
Illinois by the numbers
- Gas current price: $4.36
- Week change: +$0.10 (+2.3%)
- Year change: +$0.92 (+26.6%)
- Historical expensive gas price: $5.56 (6/13/22)
- Diesel current price: $5.28
- Week change: +$0.19 (+3.7%)
- Year change: +$1.50 (+39.5%)
- Historical expensive diesel price: $6.14 (5/14/26)
Metros with most expensive gas in Illinois
#1. City of Chicago: $4.70
#2. Alexander County: $4.60
#3. Chicago Metro: $4.47
#4. Kankakee-Bradley: $4.35
#5. Elgin: $4.34
#6. Champaign-Urbana: $4.34
#7. Peoria-Pekin: $4.34
#8. Lake County: $4.33
#9. Carbondale-Marion: $4.32
#10. Bloomington-Normal: $4.32
#11. Quincy: $4.31
#12. Springfield: $4.29
#13. Davenport-Moline-Rock Island (IL only): $4.29
#14. East Saint Louis: $4.28
#15. Decatur: $4.28
#16. Danville: $4.26
#17. Rockford: $4.25
States with the least expensive gas
#1. Indiana: $3.63
#2. Texas: $3.63
#3. Mississippi: $3.67
#4. Louisiana: $3.68
#5. Tennessee: $3.70
Read on to see which states have the most expensive gas prices.
