Illinois Youth Center - Pere Marquette
Illinois Youth Center - Pere Marquette
Youth Center - Level 3 Minimum Juvenile MaleMailing Address
[Youth Full Legal Name] — [Youth / Facility ID if assigned]
Illinois Youth Center - Pere Marquette
17808 State Highway 100W, Grafton, IL 62037
Illinois Youth Center - Pere Marquette
17808 State Highway 100W, Grafton, IL 62037
Physical Address
17808 State Highway 100W, Grafton, IL 62037
Phone
Governing Agency
Illinois Department of Juvenile Justice (IDJJ)
Inmate ID
Youth / Facility ID (if assigned) — Not required
Last Verified
September 27, 2026
Facility Mailing and Service Information
Use the youth's full legal name and any required resident/facility ID. Include a complete sender return address. Verify authorization to correspond before mailing.
Source: Official sourceLast verified: September 27, 2026
Confirm current IDJJ/facility photograph quantity, size and content restrictions before sending photos.
Source: Official sourceLast verified: September 27, 2026
Confirm current IDJJ/facility publication and package rules before ordering or shipping.
Source: Official sourceLast verified: September 27, 2026
Confirm the youth facility's current account/property procedure before sending funds.
Source: Official sourceLast verified: September 27, 2026
IDJJ visitation is restricted and facility-specific. Confirm approval, identification requirements and the current schedule before traveling.
Source: Official sourceLast verified: September 27, 2026
How to Address Your Letter
Verify the youth is currently assigned to Illinois Youth Center - Pere Marquette and is authorized to receive correspondence before mailing. Use the youth's full legal name and any facility identifier supplied by staff, then send to 17808 State Highway 100W, Grafton, IL 62037. Include a complete sender return address and confirm current facility-specific correspondence restrictions.
About Illinois Youth Center - Pere Marquette
Illinois Youth Center - Pere Marquette is a current minimum-security male IDJJ youth center focused on step-down and community reintegration.