Illinois has a population of approximately 12,821,813 and experiences a population change rate of 3.24%. The population density is 230.9 / sq mi .

The median household income for Illinois is $72,563, with 4,930,255 households and an average household size of 2.54.

The median value of a home in Illinois is $241,700 with an appreciation rate of 13.10%. 60.58% of housing in the state is owned while 30.50% is rented.

The cost of living in Illinois is 101.5 %.

The unemployment rate in Illinois is 3.70%, and recent job growth is at 0.49%. Future job growth is projected at 40.01%.

The sales tax rate in Illinois is 10.25%, while the income tax rate is 4.95% .

School expenditures in Illinois are $19,707, and the school ratio is 14:1.

The average high temperature in July is 85.6 degrees, with an average low temperature in January of 17.4 degrees. The average rainfall is approximately 39.8 inches per year, with 21.8 inches of snow per year.