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compiled statistics on gas prices in Illinois using data from . Gas prices are as of October 30.

Illinois by the numbers
- Gas current price: $4.77
- Week change: -$0.04 (-0.8%)
- Year change: +$1.55 (+47.9%)
- Historical expensive gas price: $5.56 (6/13/22)

- Diesel current price: $6.65
- Week change: +$0.03 (+0.5%)
- Year change: +$2.91 (+77.7%)
- Historical expensive diesel price: $6.83 (9/23/26)

Metros with most expensive gas in Illinois
#1. City of Chicago: $5.21
#2. Alexander County: $5.15
#3. Chicago Metro: $4.92
#4. Lake County: $4.82
#5. Elgin: $4.80
#6. Rockford: $4.78
#7. Kankakee-Bradley: $4.76
#8. Peoria-Pekin: $4.74
#9. Danville: $4.71
#10. Decatur: $4.70
#11. Davenport-Moline-Rock Island (IL only): $4.65
#12. Springfield: $4.65
#13. Champaign-Urbana: $4.64
#14. Quincy: $4.63
#15. Bloomington-Normal: $4.62
#16. Carbondale-Marion: $4.60
#17. East Saint Louis: $4.45

States with the least expensive gas
#1. North Carolina: $3.41
#2. Georgia: $3.60
#3. Texas: $3.68
#4. South Carolina: $3.70
#5. Louisiana: $3.73

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

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Rangsarit Chaiyakun // Shutterstock

1 / 5

#5. Oregon

- Regular gas price: $4.82

jittawit21 // Shutterstock

2 / 5

#4. Washington

- Regular gas price: $5.23

Christian Mueller // Shutterstock

3 / 5

#3. Nevada

- Regular gas price: $5.25

Istvan Csak // Shutterstock

4 / 5

#2. Hawaii

- Regular gas price: $5.66

Elen Nika // Shutterstock

5 / 5

#1. California

- Regular gas price: $5.93

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