Operated By
Cook County Sheriff's Office
Facility Type
County Jail
Mailing Address
Cook County Jail
2600 South California Avenue
Chicago
IL 60608
2600 South California Avenue
Chicago
IL 60608
Phone
(773) 674-7100
📇 What you'll need: the person's full legal name and their Booking / IR Number — most lookups, mail, and money transfers all require this number to route correctly.
Mailing Address & Guidelines
Cook County Jail is made up of several divisions on one campus — confirm which division someone is housed in through the Sheriff's inmate locator before mailing anything, since the exact mailing address can vary by division.
Sending Money
The Cook County Sheriff's Office uses a commissary deposit vendor (commonly Access Corrections for county jails) — check the Sheriff's official "individual in custody" mail and money page for the current provider and any per-deposit limits.
Confirm the current phone/tablet and money-deposit provider directly with the facility, since these are occasionally switched to a different vendor.
⚠️ Double-check before you send anything. Facility rules, mailing addresses, and approved vendors can change with little notice. Confirm current details directly with the facility or its official state/federal DOC page before mailing letters, packages, or money.
Related Guides
How to Write a Letter →
What Can You Send Them? →
How to Send Money →
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