Iroquois County Jail
Iroquois County Jail
County Jail / Adult Detention FacilityMailing Address
[Inmate Full Legal / Booked Name] — [Inmate / Booking Number if known]
Iroquois County Jail
P.O. Box 67
550 S. 10th Street
Watseka, IL 60970
Iroquois County Jail
P.O. Box 67
550 S. 10th Street
Watseka, IL 60970
Physical Address
550 S. 10th Street, Watseka, IL 60970
Phone
Governing Agency
Iroquois County Sheriff's Office
Inmate ID
Inmate / Booking Number — Not required
Last Verified
September 27, 2026
Facility Mailing and Service Information
Use the inmate's full booked/legal name and identifying number when known. Include the sender's complete first and last name and return address.
Source: Official sourceLast verified: September 27, 2026
Confirm the current photograph size, quantity and content restrictions before mailing. Do not send irreplaceable originals.
Source: Official sourceLast verified: September 27, 2026
Confirm current publisher/vendor, binding and package rules before ordering books, magazines, newspapers or parcels.
Source: Official sourceLast verified: September 27, 2026
Do not send cash in ordinary correspondence unless specifically authorized. Use the facility's current approved inmate-account deposit method.
Source: Official sourceLast verified: September 27, 2026
Verify current custody, visitor approval/registration requirements and the current visitation/video-visitation schedule before traveling.
Source: Official sourceLast verified: September 27, 2026
How to Address Your Letter
Verify the person is currently housed at Iroquois County Jail before mailing.
Use:
[Inmate Full Legal / Booked Name] — [Inmate / Booking Number if known]
Iroquois County Jail
P.O. Box 67
550 S. 10th Street
Watseka, IL 60970
Include the sender's complete first and last name and return address.
Use:
[Inmate Full Legal / Booked Name] — [Inmate / Booking Number if known]
Iroquois County Jail
P.O. Box 67
550 S. 10th Street
Watseka, IL 60970
Include the sender's complete first and last name and return address.
About Iroquois County Jail
Iroquois County Jail remains active at 550 S. 10th Street in Watseka; the Sheriff's Office publishes P.O. Box 67.