The Jail System
Illinois has 91 jails in 102 counties. The jail population in 2022 was 15,112.
The Prison System
As of December 31, 2022, the number of prisoners under the jurisdiction of Illinois correctional authorities was 29,634 located in 29 state prisons and held in custody of private prisons or local jails. State operated facilities had a budget of $1,834,910.
The Community Corrections System
As of December 31, 2022, the Illinois community corrections population was 79,900 under probation and 20,230 under parole.
Methodology
The National Institute of Corrections depends on publicly available information to provide the information on this page.
The statistics for budgets, employee positions, and state prison facilities data come from state departments of corrections, other state reports and state agencies. If data is missing for a state, then we were unable to find that information.
The data on prison population and incarcerate rate come from the Prisoners in 2022 report released by the Bureau of Justice Statistics (BJS). The report includes the count of prisoners in the unified systems of Alaska, Connecticut, Delaware, Hawaii, Rhode Island, and Vermont.
Violent and property crime rates are provided by the Federal Bureau of Investigations.
The number of counties per state comes from the United States Census Bureau.
- County Population Totals and Components of Change: 2020-2023
- Federal Bureau of Investigation Crime Data Explorer
- How Much Do States Spend on Prisoners?
- Illinois Office of Management and Budget
- Prisoners in 2022 – Statistical Tables
- Probation and Parole in the United States, 2022
- Vera Incarceration Trends