Illinois: Gross domestic product, billions of U.S. dollars
For that indicator, U.S. Bureau of Economic Analysis provides data for Illinois from 1997 to 2018. The average value for Illinois during that period was 632.55 billion U.S. dollars with a minumum of 415.77 billion U.S. dollars in 1997 and a maximum of 864.59 billion U.S. dollars in 2018.
See the state rankings for that indicator.
Definition: GDP at purchaser's prices is the sum of gross value added by all resident producers in the economy plus any product taxes and minus any subsidies not included in the value of the products. It is calculated without making deductions for depreciation of fabricated assets or for depletion and degradation of natural resources. Data are in current U.S. dollars.