Free Illinois (IL) cost of living calculator with 2026-specific rates. Calculate your exact cost of living using real Illinois data.
Illinois has a cost of living index of 93, where 100 represents the national average. This means living in Illinois is about 7% less expensive than the national average.
With an index of 93, Illinois falls in the moderate range for cost of living. Key factors include the median home price of $250,000, state income tax up to 4.95%, and average insurance costs.
The median household income in Illinois is $72,200. With a cost of living index of 93 and median home price of $250,000, a comfortable salary depends on your household size, location within the state, and lifestyle. Use our calculator to compare costs across states.