Pontiac Medium-Security Unit
Pontiac Medium-Security Unit
Medium Security Unit - Adult MaleMailing Address
[Individual Full Name] — [IDOC Number]
Pontiac Medium Security Unit
700 W. Lincoln Street
Pontiac, IL 61764
Pontiac Medium Security Unit
700 W. Lincoln Street
Pontiac, IL 61764
Physical Address
700 West Lincoln Street, Pontiac, IL 61764
Phone
Governing Agency
Illinois Department of Corrections (IDOC)
Inmate ID
IDOC Number — Required
Last Verified
September 27, 2026
Facility Mailing and Service Information
Use the individual's full name and IDOC number and the current facility-specific mailing address. Include a complete sender return address. IDOC recommends dark/black ink because light ink or pencil may reproduce poorly when scanned.
Source: Official sourceLast verified: September 27, 2026
Ordinary photographs may be processed with non-privileged mail. Photos larger than 8 x 10 inches, photo albums/books, negatives/slides, nudity, sexually explicit material, gang-related content and other prohibited content are not authorized. Do not send irreplaceable originals.
Source: Official sourceLast verified: September 27, 2026
Publications may be accepted when mailed directly from an authorized publisher, bookstore, distributor, religious organization, educational institution or other qualifying source and when content complies with IDOC rules. Confirm current facility restrictions before ordering.
Source: Official sourceLast verified: September 27, 2026
Do not send money to the correctional facility in ordinary correspondence. Use IDOC's current approved deposit methods and designated lockbox procedure.
Source: Official sourceLast verified: September 27, 2026
Verify the individual's current location, approved visitor status and the facility's current visitation schedule before traveling. Advance registration is required at many IDOC facilities.
Source: Official sourceLast verified: September 27, 2026
How to Address Your Letter
Verify the individual is currently assigned to Pontiac Medium Security Unit before mailing.
Use:
[Individual Full Name] — [IDOC Number]
Pontiac Medium Security Unit
700 W. Lincoln Street
Pontiac, IL 61764
Place the IDOC number near the individual's name and include the sender's complete return name and address. IDOC currently scans or color-copies most non-privileged personal correspondence for digital or printed delivery.
Use:
[Individual Full Name] — [IDOC Number]
Pontiac Medium Security Unit
700 W. Lincoln Street
Pontiac, IL 61764
Place the IDOC number near the individual's name and include the sender's complete return name and address. IDOC currently scans or color-copies most non-privileged personal correspondence for digital or printed delivery.
About Pontiac Medium-Security Unit
Pontiac Medium Security Unit is a current medium-security unit on the Pontiac Correctional Center grounds. The old P.O. Box 99 address is replaced by the current 700 W. Lincoln Street mailing address.