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

To write to someone held at Platte County Detention Center, address the envelope to the inmate's full name and booking number, Platte County Detention Center, 850 Maple St, Wheatland, WY 82201. Platte County Detention Center is the jail for Platte County, Wyoming, run by the Platte 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 — Platte County Detention Center

[Inmate's full name]  [booking number]
Platte County Detention Center
850 Maple St
Wheatland, WY  82201

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 2026plattecountywyoming.com

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Your name
Your return address

Platte County Detention Center850 Maple StWheatland, WY 82201

Your letter, printed and mailed for you.

Key facts

  • Send mail to Platte County Detention Center, 850 Maple St, Wheatland, WY 82201 — 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.
  • All mail sent to inmates is opened and searched for contraband before delivery.
  • A digital messaging option is also available through NCIC, but standard letters are accepted by mail.
  • Include a return address; letters without one can be rejected.
  • 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 Platte County Sheriff's Office's online inmate roster to confirm they're still at Platte 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 Platte County Detention Center, 850 Maple St, Wheatland, WY 82201. 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. All mail sent to inmates is opened and searched for contraband before 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 Platte County Detention Center?

Put the inmate's full name and booking number on the first line, then Platte County Detention Center, 850 Maple St, Wheatland, WY 82201. Include your full return address in the top-left corner of the envelope.

Is mail to Platte 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 Platte County Sheriff's Office's inmate roster to confirm they're still at Platte County Detention Center before you send.

What can I send to Platte County Detention Center?

All mail sent to inmates is opened and searched for contraband before delivery. A digital messaging option is also available through NCIC, but standard letters are accepted by mail. Include a return address; letters without one can be rejected. 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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