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How to send a letter to an inmate at Park County Detention Center

To write to someone held at Park County Detention Center, address the envelope to the inmate's full name and booking number, Park County Detention Center, 414 E Callender St, Livingston, MT 59047. Park County Detention Center is the jail for Park County, Montana, run by the Park County Sheriff's Office. Mail is opened and inspected — include your full return address, and double-check the person is still in custody, since people are released or moved from a county jail quickly.

Inmate mail — Park County Detention Center

[Inmate's full name]  [booking number]
Park County Detention Center
414 E Callender St
Livingston, MT  59047

Put the inmate's full name and booking number on the first line, and your full return address in the corner — mail without either is usually rejected.

Verified September 2026jailexchange.com

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Your name
Your return address

Park County Detention Center414 E Callender StLivingston, MT 59047

Your letter, printed and mailed for you.

Key facts

  • Send mail to Park County Detention Center, 414 E Callender St, Livingston, MT 59047 — the jail's own mailroom.
  • Write the inmate's full name and booking number on the envelope, plus your full return address, or the letter is returned.
  • All incoming mail is opened and inspected for contraband before it reaches the inmate.
  • Do not enclose cash, checks, gift cards, or anything other than paper — prohibited items get the whole letter rejected.
  • Include the offender's full legal name and booking number for delivery.
  • Postcards are accepted; all incoming mail is inspected before delivery.
  • Newspapers must come directly from the publisher or an approved vendor.
  • County jails move fast — people are released, bailed out, or transferred within days. Confirm the person is still in custody before mailing anything time-sensitive.
  • PostPal prints and mails your letter for you the next business day for $5 — with your return address printed so they can write back, and no printer, envelope, or stamp needed.

How to send your letter

  1. 1

    Confirm the person is still at the jail

    County-jail populations turn over quickly. Check the Park County Sheriff's Office's online inmate roster to confirm they're still at Park County Detention Center — and get their booking number — before you mail anything.

  2. 2

    Address it correctly

    First line: the inmate's full name and booking number. Then Park County Detention Center, 414 E Callender St, Livingston, MT 59047. Add your full return address in the top-left corner.

  3. 3

    Keep the contents allowed

    A plain letter on white paper is always safest. Include the offender's full legal name and booking number for delivery. No cash, gift cards, or any object other than paper.

  4. 4

    Send it without a printer

    Write or upload your letter in PostPal with this address prefilled, and we print, envelope, and mail it via USPS the next business day for $5 — your return address printed so they can reply.

Common questions

How do I address a letter to an inmate at Park County Detention Center?

Put the inmate's full name and booking number on the first line, then Park County Detention Center, 414 E Callender St, Livingston, MT 59047. Include your full return address in the top-left corner of the envelope.

Is mail to Park County Detention Center opened or read?

Yes. All incoming mail is opened and inspected for contraband before delivery, and non-legal mail can be read.

What if they've been released or moved?

It happens fast at a county jail — people bond out or transfer within days, and the letter won't be forwarded. Check the Park County Sheriff's Office's inmate roster to confirm they're still at Park County Detention Center before you send.

What can I send to Park County Detention Center?

Include the offender's full legal name and booking number for delivery. Postcards are accepted; all incoming mail is inspected before delivery. Newspapers must come directly from the publisher or an approved vendor. When in doubt, a plain letter on white paper is always accepted.

Can the inmate write back to me?

Yes, if you include a complete return address. PostPal prints your return address on the letter for you.

Sources

Addresses verified September 2026 against official sources. Always confirm on the official site before time-sensitive filings.

See the full US county & city jails rules — what you can and can’t send, photos & more →

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