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Mailing Letters and Photos to Someone at ISCC: Address Format, Rules, and What Happens When They Move

Mail is one of the simplest ways to stay connected—but only if you get the address right and follow IDOC's rules. Here's the exact address format ISCC uses, what you can send, how mail gets screened, and what happens if the resident transfers.

• 2 min read • idoc.idaho.gov
Mailing Letters and Photos to Someone at ISCC: Address Format, Rules, and What Happens When They Move

Use the full, multi-line format so the mailroom can match your letter to the right person and housing unit: First line: the resident's last name and IDOC number Second line: the facility name (ISCC) and the resident's unit number Third line: PO Box 70010 Fourth line: Boise, ID 83707

Mailing Letters and Photos to Someone at ISCC: Address Format, Rules, and What Happens When They Move

Residents at ISCC can receive personal letters from family and friends, but packages aren't allowed. Planning to send something beyond paper mail? Leave it out of the envelope. Stick to letters and approved photos - anything else will get rejected.

  • ✓ Photos are allowed
  • ✓ No Polaroid photos
  • ✓ No photos containing nudity

Every piece of personal mail gets opened and searched for contraband before delivery. If staff find something they can't accept, it won't be quietly held or tossed - unacceptable items are returned to the sender or turned over to authorities. This matters because introducing or possessing contraband in an Idaho correctional facility is a crime under Idaho Code 18-2510. Even unintentional violations can create legal trouble and disrupt the resident's housing and privileges. Keep your mail simple and clean.

Warning: Bringing or sending contraband into an Idaho correctional facility is a crime under Idaho Code 18-2510. If something in your mail is unacceptable, it can be returned to you or referred to authorities.

If the resident is indigent (no funds in their account), the facility provides stationery and postage for one personal letter per week. They can still write to you even when money is tight.

  1. Confirm where they’re housed now - Contact facility visiting staff or use the IDOC resident/client search tool to verify the resident’s current housing location.
  2. Update the address lines to match the current unit and facility - Use the same ISCC address format (last name + IDOC number; facility + unit number; PO Box; Boise, ID 83707), but make sure the facility name and unit number reflect where they are now.
  1. Write “Return to Sender” on the envelope - Put it clearly on the front.
  2. Send it back unopened - Don’t open the letter; mail it back as-is.

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How to Address Mail for Someone at Idaho State Correctional Center (ISCC)

Getting the address format right is the single most important step to making sure your letter actually reaches someone at Idaho State Correctional Center (ISCC). Here's the four-line format you need, including the ISCC PO Box and the resident's unit number.