How gas prices have changed in Springfield, Illinois in the last week

Written by:
May 18, 2026
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How gas prices have changed in Springfield, Illinois in the last week

Stacker compiled statistics on gas prices in Springfield, IL metro area using data from AAA. Gas prices are current as of May 18.

Springfield, Illinois by the numbers
- Gas current price: $4.86
--- Illinois average: $5.05
- Week change: -$0.03 (-0.6%)
- Year change: +$1.60 (+48.8%)
- Historical expensive gas price: $5.28 (6/11/22)

- Diesel current price: $6.01
- Week change: +$0.09 (+1.5%)
- Year change: +$2.57 (+74.9%)
- Historical expensive diesel price: $6.07 (5/14/26)

Metros with the least expensive gas
#1. McAllen-Edinburg-Mission, TX: $3.78
#2. Brownsville-Harlingen, TX: $3.79
#3. Laredo, TX: $3.80

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

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1 / 5
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#5. San Luis Obispo-Atascadero-Paso Robles, CA

- Regular gas price: $6.30
2 / 5
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#4. San Rafael, CA

- Regular gas price: $6.31
3 / 5
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#3. San Francisco, CA

- Regular gas price: $6.31
4 / 5
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#2. Salinas, CA

- Regular gas price: $6.31
5 / 5
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#1. Napa, CA

- Regular gas price: $6.37
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