IL · Updated April 22, 2026
Illinois Gas Prices
Current retail average for regular gasoline in Illinois, with daily history tracked against the US national average.
Current Price
$4.29
per gallon
30-Day Change
—
1-Year Change
—
vs National
+$0.28
Nat'l $4.01
Illinois Price History
State average vs national average
Illinois
National Average
Related Tool
What does Illinois gas cost your commute?
Plug your miles and wage into DriveTax to see how much Illinois's $4.29/gal drains your paycheck each year.