What to Send (and What Not to) When Mailing Letters to Someone at Cimarron

Use Cimarron Correctional Facility's mailing address exactly as the facility provides it. Don't "improve" it with extra lines or alternate names - even small changes can slow delivery or get your letter rejected. Not sure you have the current address for the person you're writing to? Call the facility to confirm before sending anything.

Make it easy for the mailroom to match your letter to the right person. On the envelope, include the facility address, the detainee's name, and their identifying number. Need to verify details before you mail? Call (918) 225-3336 between 8 a.m. and 3 p.m.

• ✓ Detainee’s full name (spelled correctly)
• ✓ Detainee’s alien registration number (A-number)
• ✓ Cimarron Correctional Facility name and mailing address (exact format)
• ✓ Your full name and return mailing address
• ✓ A plain, standard envelope (avoid bulky or oversized envelopes unless you’ve confirmed they’re accepted)

Prohibited Items

• ✓ Anything that makes the envelope bulky or hard to inspect (thick stacks of paper, layered inserts)
• ✓ Items stuck to the paper (glitter, stickers, tape, glue, pasted-on photos or cutouts)
• ✓ Polaroid-style photos or any photo presentation that looks “built up” or altered
• ✓ Maps, printed directions, or other materials that can be treated as contraband depending on content
• ✓ Framed photos or anything rigid (cardboard backings, laminated pieces)
• ✓ Greeting cards that include extra materials (pop-ups, music, foil, heavy embellishments)

Sending legal or confidential mail? Label it clearly on the outside of the envelope so it's handled as privileged correspondence. Use the attorney or legal organization's full name and return address, and mark the envelope as legal/privileged/confidential per the facility's procedures. Keep the contents strictly legal - mixing personal letters or unrelated enclosures into legal mail can cause delays or cost you privileged handling. When in doubt, send personal mail separately.

1. Confirm the detainee details - If you need information, call (918) 225-3336 between 8 a.m. and 3 p.m.
2. Write the envelope clearly - Use the facility mailing address and the detainee’s full name plus alien registration number (A-number).
3. Add your return address - Put your full name and mailing address on the outside of the envelope.
4. Keep enclosures simple - Stick to plain paper; avoid anything bulky, glued-on, laminated, or heavily decorated.
5. Use the urgent-message option when needed - For something time-sensitive, call (918) 225-3336 and leave the detainee’s full name, alien registration number, and your name and telephone number; the detainee will be given your message.