Wisconsin inmate mail
Send a letter to an inmate in Wisconsin
Confirm the Wisconsin DOC number and full facility name, then write online. PieterPost already has the official TextBehind address and prints, addresses, stamps, and mails your physical letter.
Write my Wisconsin inmate letterWisconsin state-prison addresses
Wisconsin statewide personal-mail address
Wisconsin routes ordinary USPS personal mail through TextBehind in Phoenix, Maryland. Write the correctional facility's full name.
Personal mail sent directly to the Wisconsin institution is returned. Legal mail, publications, property, packages, and money use separate routes.
WI TextBehind mail processing
[PIOC full first and last name]DOC [number][Correctional facility — do not abbreviate]P.O. Box 189Phoenix, MD 21131Three simple steps
How to send a letter to an inmate in Wisconsin
Add the inmate's name and DOC number. We already know the official statewide personal-mail address.
- 1Enter their name and DOC number
- 2Write and review your message
- 3We print, stamp, and mail it
Current Wisconsin guidance
Helpful inmate-mail rules
- Letter length
- Wisconsin publishes no general page limit. Facility property limits and TextBehind rules apply, so check before sending an unusually bulky letter.
- Paper format
- Use plain, legible pages and avoid anything whose physical original must reach the recipient.
- Envelope and address
- Include the PIOC's full first and last name, DOC number, unabbreviated facility name, and your complete return name and address.
- How it arrives
- TextBehind processes accepted correspondence. The physical envelope and original contents are not delivered as ordinary personal mail.
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:
- Irreplaceable original letters, drawings, photographs, or documents
- Faint pages, glued layers, loose objects, or other non-processable material
- Musical, electronic, padded, layered, glittered, scented, or pop-up cards
- Funds, checks, gift cards, or special documents intended for a separate facility route
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
Wisconsin local jail directory
Looking for a county or city jail?
This guide covers people in Wisconsin Department of Corrections custody. County and city jails use their own addresses, which you can find on the map.
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 someone in a Wisconsin state prison?
Confirm the DOC number and full correctional-facility name, then write online. PieterPost prints your letter, adds an envelope and postage, and mails it to TextBehind.
Which Wisconsin personal-mail address should I use?
Use the PIOC's full first and last name, DOC number, and unabbreviated correctional-facility name, followed by P.O. Box 189, Phoenix, MD 21131.
How do I find the DOC number and current facility?
Use the Wisconsin offender locator to confirm the DOC number and current facility. Spell out the full facility name so TextBehind can route the processed mail.
Will the Wisconsin recipient get my physical original?
TextBehind processes accepted correspondence for delivery to the person in custody. The physical envelope and original contents are not delivered as ordinary personal mail.
Does this Wisconsin guidance cover local and federal facilities?
No. This page covers adults in Wisconsin DOC state prisons. County jails, federal prisons, juvenile facilities, and other custody settings use their own mail rules.