Research by the American Petroleum Institute shows Illinois gas prices ranking eighth highest in the nation. On average, Illinois drivers pay $0.39 per gallon in state gas taxes. According to Illinois Policy:
“Illinois drivers pay, on average, $0.39 per gallon in state gas taxes.
That amount adds up quickly. A driver purchasing 15 gallons of gas in Illinois shells out about $6 extra in state taxes, on top of the price of the gasoline itself.
Illinois’ per-gallon gas tax is the eighth highest in the country, according to research from the American Petroleum Institute.”