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How to send a letter to an inmate at Prince William-Manassas Regional Adult Detention Center

To write to someone held at Prince William-Manassas Regional Adult Detention Center, address the envelope to the inmate's full name and inmate ID number, Prince William-Manassas Regional Adult Detention Center, 9320 Lee Ave, Manassas, VA 20110. Prince William-Manassas Regional Adult Detention Center is the jail for Prince William County, Virginia, run by Prince William-Manassas Regional Adult Detention Center. 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 — Prince William-Manassas Regional Adult Detention Center

[Inmate's full name]  [inmate ID number]
Prince William-Manassas Regional Adult Detention Center
9320 Lee Ave
Manassas, VA  20110

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 September 2026pwcva.gov

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Your name
Your return address

Prince William-Manassas Regional Adult Detention Center9320 Lee AveManassas, VA 20110

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Key facts

  • Send mail to Prince William-Manassas Regional Adult Detention Center, 9320 Lee Ave, Manassas, VA 20110 — 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.
  • Incoming mail is opened, inspected, and photocopied — the inmate receives a copy, not your original. Send copies of anything you want to keep.
  • Do not enclose cash, checks, gift cards, or anything other than paper — prohibited items get the whole letter rejected.
  • Unlimited mail is allowed, but every envelope must have a return address.
  • Mail is screened on-site for security before delivery.
  • Only letters and approved content are accepted — no unauthorized enclosures.
  • 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 Prince William-Manassas Regional Adult Detention Center's online inmate roster to confirm they're still at Prince William-Manassas Regional Adult Detention Center — 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 Prince William-Manassas Regional Adult Detention Center, 9320 Lee Ave, Manassas, VA 20110. 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. Unlimited mail is allowed, but every envelope must have a return address. 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 Prince William-Manassas Regional Adult Detention Center?

Put the inmate's full name and inmate ID number on the first line, then Prince William-Manassas Regional Adult Detention Center, 9320 Lee Ave, Manassas, VA 20110. Include your full return address in the top-left corner of the envelope.

Is mail to Prince William-Manassas Regional Adult Detention Center opened or read?

Yes. Incoming mail is opened, inspected, and photocopied — the inmate gets the copy, and your original is kept in their property or discarded. 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 Prince William-Manassas Regional Adult Detention Center's inmate roster to confirm they're still at Prince William-Manassas Regional Adult Detention Center before you send.

What can I send to Prince William-Manassas Regional Adult Detention Center?

Unlimited mail is allowed, but every envelope must have a return address. Mail is screened on-site for security before delivery. Only letters and approved content are accepted — no unauthorized enclosures. 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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