Illinois

The atlas lists 173 prisons, jails and detention centres in Illinois, United States, including 96 county jails and 43 state prisons.

By the capacity recorded in its sources, Cook County Jails is the largest, with about 10,000 places.

1,093 police units are listed for Illinois, United States: 874 police departments, 117 sheriff's offices and 76 special jurisdiction agencies.

Start with the live rosters on this page, which list 21,825 people right now. For other jails, use the sheriff's inmate lookup or call the facility.

Cook County, with 6 prisons and jails and 173 police units.

Yes for 173 entries of 173. Where a number is missing, the facility page shows its address and map location; details can change, so the agency's own website is the authority.

The atlas lists 19 juvenile facilities here. Each has its own page with the address and, where published, a phone number.

Joliet has the most, with 7 places of detention in the atlas, out of 118 towns with at least one.

The atlas files Illinois, United States by county, following official administrative boundaries; 102 counties currently have entries. Every facility is listed in the county where it is located; Cook County is the largest by number of entries.