How gas prices have changed in Illinois in the last week

Written by:
August 4, 2025
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How gas prices have changed in Illinois in the last week

Stacker compiled statistics on gas prices in Illinois. Gas prices are as of August 4.

Illinois by the numbers
- Gas current price: $3.44
- Week change: +$0.06 (+1.9%)
- Year change: -$0.54 (-13.5%)
- Historical expensive gas price: $5.56 (6/13/22)

- Diesel current price: $3.79
- Week change: +$0.02 (+0.6%)
- Year change: -$0.16 (-4.0%)
- Historical expensive diesel price: $5.82 (6/25/22)

Metros with most expensive gas in Illinois
#1. City of Chicago: $3.83
#2. Chicago Metro: $3.60
#3. Lake County: $3.51
#4. Alexander County: $3.50
#5. Elgin: $3.46
#6. Kankakee-Bradley: $3.36
#7. Champaign-Urbana: $3.34
#8. Peoria-Pekin: $3.32
#9. Danville: $3.31
#10. Bloomington-Normal: $3.30
#11. East Saint Louis: $3.30
#12. Davenport-Moline-Rock Island (IL only): $3.28
#13. Springfield: $3.26
#14. Carbondale-Marion: $3.26
#15. Rockford: $3.25
#16. Decatur: $3.23
#17. Quincy: $3.23

States with the least expensive gas
#1. Mississippi: $2.71
#2. Oklahoma: $2.73
#3. Texas: $2.75

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

1 / 5
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#5. Alaska

- Regular gas price: $3.76
2 / 5
Rangsarit Chaiyakun // Shutterstock

#4. Oregon

- Regular gas price: $3.98
3 / 5
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#3. Washington

- Regular gas price: $4.39
4 / 5
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#2. Hawaii

- Regular gas price: $4.45
5 / 5
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#1. California

- Regular gas price: $4.50

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