How gas prices have changed in Illinois in the last week

Written by:
January 30, 2026
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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 February 3.

Illinois by the numbers
- Gas current price: $2.98
- Week change: +$0.01 (+0.3%)
- Year change: -$0.28 (-8.6%)
- Historical expensive gas price: $5.56 (6/13/22)

- Diesel current price: $3.67
- Week change: +$0.03 (+0.9%)
- Year change: +$0.05 (+1.5%)
- Historical expensive diesel price: $5.82 (6/25/22)

Metros with most expensive gas in Illinois
#1. City of Chicago: $3.33
#2. Chicago Metro: $3.10
#3. Alexander County: $3.06
#4. Lake County: $2.99
#5. Elgin: $2.96
#6. Carbondale-Marion: $2.96
#7. East Saint Louis: $2.92
#8. Quincy: $2.88
#9. Danville: $2.87
#10. Springfield: $2.85
#11. Champaign-Urbana: $2.85
#12. Peoria-Pekin: $2.85
#13. Kankakee-Bradley: $2.84
#14. Rockford: $2.83
#15. Bloomington-Normal: $2.83
#16. Decatur: $2.81
#17. Davenport-Moline-Rock Island (IL only): $2.79

States with the least expensive gas
#1. Oklahoma: $2.37
#2. Arkansas: $2.44
#3. Mississippi: $2.45

Read on to see which states have the most expensive gas prices.

1 / 5
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#5. Oregon

- Regular gas price: $3.48
2 / 5
Rangsarit Chaiyakun // Shutterstock

#4. Nevada

- Regular gas price: $3.49
3 / 5
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#3. Washington

- Regular gas price: $3.96
4 / 5
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#2. California

- Regular gas price: $4.37
5 / 5
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