Illinois Gas Prices
Weekly average gasoline price for Illinois — EIA retail survey data.
Current Illinois Gas Price
Illinois Average
$3.861/gal
Week ending Monday, June 15, 2026
EIA does not publish a direct weekly series for Illinois. Showing PADD 2 (Midwest) regional average.
vs last year: +$0.835 (+27.6%)
National average
$4.052
vs national
-$0.191
National rank
#10 of 51
Weekly retail gasoline survey data from U.S. Energy Information Administration (EIA) (eia.gov). Updated 6/19/2026, 6:49:11 PM ET. Not live pump prices — always check your local station for current prices.
Other States
See the latest weekly average gasoline price for Illinois, updated from official EIA retail survey data. Compare Illinois's price to the national average and track week-over-week and year-over-year trends.
EIA updates weekly — not live pump prices. Where EIA does not publish a direct Illinois series, this page shows the best available regional average with a clear note. Always check local stations for current pump prices.
Current Illinois Gas Price
The latest weekly average retail price for regular gasoline in Illinois is shown above, along with the survey week ending date and trend vs. last week and last year.
Illinois vs. National Average
Compare Illinois's price to the U.S. average to see whether drivers in Illinois pay more or less than the nation as a whole. State fuel taxes and regional supply factors are the main drivers of the gap.
Why Do Gas Prices Move?
Gasoline prices follow crude oil markets, refinery output, seasonal demand, and state taxes. Geopolitical events, hurricanes affecting Gulf Coast refineries, and OPEC production decisions can move prices sharply within weeks.
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Illinois Gas Prices — Frequently Asked Questions
- What is the average gas price in Illinois?
- The latest weekly EIA average for regular gasoline in Illinois is displayed at the top of this page with the survey date.
- Are these live pump prices in Illinois?
- No. These are EIA weekly survey averages, not real-time prices at individual gas stations. Check local stations for current pump prices.
- Why is gas expensive in Illinois?
- State fuel taxes, environmental regulations, distance from refineries, and regional supply all affect Illinois gasoline prices relative to other states.