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How to send a letter to an inmate at Weld County Jail

To write to someone held at Weld County Jail, address the envelope to the inmate's full name and inmate ID number, Weld County Jail, 2110 O Street, Greeley, CO 80631. Weld County Jail is the jail for Weld County, Colorado, run by the Weld 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 — Weld County Jail

[Inmate's full name]  [inmate ID number]
Weld County Jail
2110 O Street
Greeley, CO  80631

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

Verified August 2026weld.gov

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Your name
Your return address

Weld County Jail2110 O StreetGreeley, CO 80631

Your letter, printed and mailed for you.

Key facts

  • Send mail to Weld County Jail, 2110 O Street, Greeley, CO 80631 — the jail's own mailroom.
  • Write the inmate's full name and inmate ID 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.
  • Letters, postcards, and photos are accepted (no more than four photos per envelope).
  • Blue or black ink; no glitter, confetti, or drawings; no more than 10 letters per envelope.
  • Books, newspapers, and magazines must be new and sent directly from the publisher.
  • 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 Weld County Sheriff's Office's online inmate roster to confirm they're still at Weld County Jail — and get their inmate ID number — before you mail anything.

  2. 2

    Address it correctly

    First line: the inmate's full name and inmate ID number. Then Weld County Jail, 2110 O Street, Greeley, CO 80631. 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. Letters, postcards, and photos are accepted (no more than four photos per envelope). 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 Weld County Jail?

Put the inmate's full name and inmate ID number on the first line, then Weld County Jail, 2110 O Street, Greeley, CO 80631. Include your full return address in the top-left corner of the envelope.

Is mail to Weld County Jail 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 Weld County Sheriff's Office's inmate roster to confirm they're still at Weld County Jail before you send.

What can I send to Weld County Jail?

Letters, postcards, and photos are accepted (no more than four photos per envelope). Blue or black ink; no glitter, confetti, or drawings; no more than 10 letters per envelope. Books, newspapers, and magazines must be new and sent directly from the publisher. 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 August 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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