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 May 15.
Illinois by the numbers
- Gas current price: $5.08
- Week change: +$0.09 (+1.9%)
- Year change: +$1.69 (+49.6%)
- Historical expensive gas price: $5.56 (6/13/22)
- Diesel current price: $6.13
- Week change: +$0.15 (+2.5%)
- Year change: +$2.60 (+73.6%)
- Historical expensive diesel price: $6.14 (5/14/26)
Metros with most expensive gas in Illinois
#1. City of Chicago: $5.44
#2. Chicago Metro: $5.28
#3. Lake County: $5.18
#4. Elgin: $5.16
#5. Carbondale-Marion: $4.95
#6. Rockford: $4.94
#7. Peoria-Pekin: $4.94
#8. Kankakee-Bradley: $4.92
#9. East Saint Louis: $4.90
#10. Alexander County: $4.90
#11. Champaign-Urbana: $4.88
#12. Danville: $4.88
#13. Springfield: $4.88
#14. Davenport-Moline-Rock Island (IL only): $4.84
#15. Decatur: $4.83
#16. Bloomington-Normal: $4.83
#17. Quincy: $4.73
States with the least expensive gas
#1. Texas: $4.00
#2. Mississippi: $4.00
#3. Louisiana: $4.01
#4. Georgia: $4.02
#5. Oklahoma: $4.02
Read on to see which states have the most expensive gas prices.
