How gas prices have changed in Illinois in the last week

Written by:
June 12, 2026
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How gas prices have changed in Illinois in the last week

Stacker compiled statistics on gas prices in Illinois using data from AAA. Gas prices are as of June 19.

Illinois by the numbers
- Gas current price: $4.24
- Week change: -$0.18 (-4.0%)
- Year change: +$0.80 (+23.2%)
- Historical expensive gas price: $5.56 (6/13/22)

- Diesel current price: $5.36
- Week change: -$0.20 (-3.5%)
- Year change: +$1.71 (+46.9%)
- Historical expensive diesel price: $6.14 (5/14/26)

Metros with most expensive gas in Illinois
#1. Alexander County: $4.80
#2. City of Chicago: $4.75
#3. East Saint Louis: $4.43
#4. Davenport-Moline-Rock Island (IL only): $4.42
#5. Carbondale-Marion: $4.37
#6. Peoria-Pekin: $4.36
#7. Quincy: $4.27
#8. Chicago Metro: $4.25
#9. Rockford: $4.20
#10. Danville: $4.20
#11. Champaign-Urbana: $4.15
#12. Bloomington-Normal: $4.12
#13. Elgin: $4.11
#14. Kankakee-Bradley: $4.10
#15. Lake County: $4.05
#16. Decatur: $4.05
#17. Springfield: $3.99

States with the least expensive gas
#1. Indiana: $3.38
#2. Texas: $3.48
#3. Oklahoma: $3.49
#4. South Carolina: $3.56
#5. Tennessee: $3.56

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

1 / 5
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#5. Oregon

- Regular gas price: $4.89
2 / 5
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#4. Alaska

- Regular gas price: $5.02
3 / 5
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#3. Washington

- Regular gas price: $5.40
4 / 5
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#2. Hawaii

- Regular gas price: $5.56
5 / 5
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#1. California

- Regular gas price: $5.61

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