Maryland inmate mail
Send a letter to an inmate in Maryland
Confirm the Maryland SID number and choose the current facility’s correspondence address. PieterPost prints, addresses, stamps, and mails your physical letter.
Choose their Maryland facilityMaryland state-prison addresses
Use the current Maryland facility address
Maryland’s official mail-services table lists the facility acronym and exact address for each institution. Confirm the current location and copy the corresponding block rather than using DPSCS headquarters.
The facility acronym and exact mail address are required.
Address format
Three simple steps
How to send a letter to an inmate in Maryland
Choose the current facility and add the inmate's SID number. We help you carry the address into the letter flow.
- 1Choose their current facility
- 2Write and review your message
- 3We print, stamp, and mail it
Current Maryland guidance
Helpful inmate-mail rules
- Letter length
- No universal page limit is published; check the facility before sending an unusually long letter
- Letter format
- Use plain paper and dark ink with nothing glued, taped, or attached to the letter
- Envelope and address
- Include the full name, SID number, facility acronym, exact table address, and the sender’s full return address
- How it arrives
- Accepted ordinary correspondence is handled at the person’s current Maryland DPSCS institution
Items that need another approved route
PieterPost is for ordinary written letters. To help avoid a mailroom rejection, do not add these items to the envelope:
- Cash, checks, stamps, or other negotiable items
- Address labels, stickers, glitter, perfume, or glued objects
- Paint, crayon, marker, cloth, string, electronics, or pop-up layers
- Polaroids, altered or laminated photos, or unapproved attachments
PieterPost takes care of the rest
You only need to write your message
No printer, paper, envelope, stamp, or trip to the post office. We prepare and mail the physical letter for you.
- Write your letter online from any device
- Check the finished letter before paying
- We format and print it for the facility
- We address, stamp, and mail the envelope
Maryland facility finder
Find their prison or local jail
Choose the current facility on the map. We will carry the selected address into the letter flow for you to review.
Is the person in federal prison?
Search the Bureau of Prisons inmate locator and continue with the federal letter flow.
Common questions
How do I send a letter to an inmate in Maryland?
Confirm the person’s SID number and current facility, then copy the matching address from the DPSCS mail-services table. Write online and PieterPost will format, print, add the envelope and postage, and mail your physical letter.
Which address should I use for Maryland inmate mail?
Use the exact mailing address and facility acronym from Maryland’s facility-by-facility mail table. Maryland has no single address for every person, and the DPSCS headquarters address is not a substitute.
How do I find a Maryland SID number and facility?
Use Maryland’s incarcerated-individual locator to confirm the SID number and current facility. Then match the location to the acronym and mailing address in the official DPSCS mail-services table.
How many pages can I send to a Maryland prison?
Maryland does not publish one universal page limit for every personal letter on its mail-services page. Facility and property restrictions can apply, so check before sending an unusually long letter.
Does this guide apply to Maryland jails or federal prisons?
No. This guide covers adults in Maryland DPSCS state facilities. County or city jails, federal prisons, juvenile custody, immigration detention, and contract settings can use separate rules.