Mailing an Incarcerated Person at Western Illinois: Address Format That Gets Through

A missing detail on your envelope can mean delays or returned mail. Here's exactly how to format the address for Western Illinois Correctional Center, including the person's name and IDOC number.

2 min read Verified from official sources

To send personal mail to someone at Western Illinois Correctional Center, put their full name and IDOC number on the first line, followed by the facility address. Here's the format: Individual in Custody Name & IDOC# 2500 Rt. 99 South Mount Sterling, IL 62353

Note: Always use the "Individual in Custody Name & IDOC#" format on any letter or correspondence going to a specific person. The name and IDOC number are how the facility routes it to the right recipient.

For general correspondence to the facility itself (not directed to a specific person), use: 2500 Rt. 99 South Mount Sterling, IL 62353 Don't use this format for mail meant for someone in custody. You still need the person's name and IDOC number on the envelope, or it won't reach them.

IDOC facilities now scan and/or photocopy all incoming non-privileged mail. In practice, this means most personal mail gets converted to an electronic copy rather than being handed over in its original paper form.

  1. Mail is opened and checked. Non-privileged mail received for an individual is opened and inspected for contraband.
  2. Everything is scanned in color. Mailroom staff scan the front and back of the envelope and each item inside.
  3. Images are uploaded to the Bulletin Board. The scanned documents are uploaded to the individual’s Bulletin Board.
  4. The person gets a tablet notification. The individual receives a notification that new scanned documents are available to download and view on their tablet.

What this means for you: Your letter, card, or photo will typically be viewed as a scanned image on a tablet after staff inspect and upload it. The original paper you mailed won't be handed to the recipient.

Photos are the one exception. Original photographs mailed directly to someone in custody from a photo printing vendor will be delivered in their original form (including photos with the vendor's watermark or logo), as long as the photos aren't unauthorized.

Note: Vendor-printed photos can be delivered as originals, unless they're unauthorized. All other non-privileged mail is still opened, inspected, scanned in color, and uploaded for viewing on a tablet.

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