How to mail a letter to an inmate at Monroe Correctional Complex
To write to someone held at Monroe Correctional Complex, address your envelope to the inmate's full committed name and DOC number, Monroe Correctional Complex, P.O. Box 777, Monroe, WA 98272. Monroe Correctional Complex is a correctional complex in Monroe, Washington, operated by the Washington State Department of Corrections.
Inmate mail — Monroe Correctional Complex
[Inmate's full committed name] [DOC number] Monroe Correctional Complex P.O. Box 777 Monroe, WA 98272
Which P.O. box you use depends on the person's housing facility (yard) at Monroe Correctional Complex — pick the box listed for their yard below, and confirm their current housing on the Washington State Department of Corrections (DOC)'s inmate locator. Put the inmate's full committed name and DOC number on the first line.
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Monroe Correctional ComplexP.O. Box 777Monroe, WA 98272
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Key facts
- Monroe Correctional Complex uses a different P.O. box for each housing facility (yard), all in Monroe, WA 98272: IMU → P.O. Box 777; MSU → P.O. Box 7001; SRTC → P.O. Box 514; TRU → P.O. Box 888. Use the box matching the person's current housing.
- Washington sends mail to each prison directly. Address it to the incarcerated person’s full committed name and six-digit DOC number, then the facility’s own mailing address (a P.O. box for some, a street address for others).
- A return address with an identifiable last name is required on every envelope. Mail without the DOC number or a return address is rejected and returned.
- Incoming mail is opened and inspected; as of August 2026 some facilities photocopy incoming personal mail (via TextBehind) and deliver a copy — but you still mail the facility’s own address, not a vendor.
- Confirm the person’s current facility on DOC’s inmate search before mailing, and note the unit — Monroe Correctional Complex uses a different P.O. box for each unit (IMU, MSU, SRTC, TRU).
- PostPal prints and mails your letter for you the next business day for $5 — with your return address printed so the inmate can write back, and no printer, envelope, or stamp needed.
How to send your letter
- 1
Confirm the person is still at Monroe Correctional Complex
Inmates are transferred between facilities without notice. Confirm they are still at Monroe Correctional Complex — and double-check the DOC number — before you mail anything, using the Washington State Department of Corrections (DOC)'s official inmate locator.
- 2
Address it exactly
First line: the inmate's full committed name and DOC number. Then Monroe Correctional Complex, the P.O. box for their housing yard (see the list above), Monroe, WA 98272. Add your full return address.
- 3
Keep the contents allowed
Plain letter-size paper is safest. Do not enclose cash, stamps, gift cards, or any object other than paper — prohibited items get the whole letter rejected. Check the mail rules above before adding photos.
- 4
Send it without a printer
Write or upload your letter to 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 Monroe Correctional Complex?
Put the inmate's full committed name and DOC number on the first line, then Monroe Correctional Complex, P.O. Box 777, Monroe, WA 98272. Include your full first and last name and return address on the envelope.
Is mail to Monroe Correctional Complex opened, read, or scanned?
Expect it to be. Incoming personal mail is opened and inspected for contraband and can be read under the Washington State Department of Corrections (DOC)'s rules.
What can I send to Monroe Correctional Complex — photos, cards, or books?
Photos are generally allowed; no polaroids or laminated photos, and nothing nude or sexually explicit. Books and magazines must come directly from a publisher or approved vendor (per Policy 450.100), not in personal mail.
What can't I mail to Monroe Correctional Complex?
Do not send: Cash, personal checks, or postage stamps (rejected and returned at the person’s expense); Any item other than paper (no polaroids, laminated items, or enclosures); Nude, sexually explicit, or contraband-promoting content; Stickers, glitter, glue, tape, perfume, lipstick, or crayon/marker; Publications not sent directly from a publisher or approved vendor. Prohibited items get the letter rejected or destroyed.
What if the person has been transferred or released?
The letter will not reliably reach them or come back to you. Confirm they are still at Monroe Correctional Complex before mailing, since the Washington State Department of Corrections (DOC) moves people without notice.
Can the inmate write back to me?
Yes, if you include a complete return address. Inmates can send outgoing mail, though they may need to cover their own postage. PostPal prints your return address for you.
Sources
Addresses verified August 2026 against official sources. Always confirm on the official site before time-sensitive filings.
See the full Washington inmate mail rules — what you can and can’t send, photos & more →