The average Illinois price for a gallon of regular unleaded is $2.33. This is five cents cheaper than last week's mean price.
AAA reports the state's most expensive gas can be found in the City of Chicago, at $2.67/gallon. Meanwhile, the cheapest gas can be found in Champaign-Urbana, at $2.15/gallon.
Rockford's average price is $2.25 per gallon.
