The Address, and the Code That Makes It Work
[Full Legal Name, Offender ID Number]
Anamosa State Penitentiary - 1106
PO Box 96777
Las Vegas, NV 89193
1106 is Anamosa’s code. Each Iowa prison has its own, and the code is what tells the processing centre which of the nine to send the scanned letter to. Iowa publishes the full set, and the numbers are close enough to each other that a slip matters: Clarinda is 1107, the Medical and Classification Center 1108, the women’s prison 1109, Iowa State Penitentiary 1110.
The name and offender ID number come from Iowa’s offender search.
What Iowa Says Happens to Mail Sent to the Prison
This is the sentence that makes Iowa different, and it is worth reading exactly as the department writes it: any non-legal mail sent directly to an IDOC facility will be returned to sender.
Not forwarded. Not delayed. Returned.
So 406 N High St. is the right address for a visit and the wrong address for a letter. It is the single most common way a letter to someone at Anamosa fails.
Who Handles It
Iowa’s correspondence policy names the contractor in its own text rather than describing an anonymous vendor: the department contracts with Pigeonly Corrections to receive mail from the public and produce copies for the people held at its facilities.
The process is: mail arrives at the Nevada PO Box, Pigeonly Corrections opens all non-legal mail and scans it into a digital colour copy, and the copy is printed and delivered to the correct Iowa prison. The original is held for 45 days rather than destroyed right away, and the sender can request it back in that window.
It runs at no additional cost to you.
The Accepted List, in Iowa’s Own Words
Iowa lists exactly what gets processed:
- Letters, and the department names children’s drawings specifically
- Greeting cards
- Postcards
- 4x6 photos, limited to ten
- Unbound newsletters
The ten-photo limit and the 4x6 size are both firm.
Sending a Photograph That Stays a Photograph
By post, 4x6 and ten at a time. Like everything else in the envelope it is scanned, so a colour copy of your photo is what reaches the visiting room.
Through Pigeonly, it stays a photograph. Choose the pictures on your phone, and what reaches Anamosa is a real colour print, not a scan of something you posted.
If the picture itself is the point, that is the difference worth knowing.
Getting the Original Back
The original is not destroyed right away. Pigeonly holds it for 45 days, and the sender can request it back for free any time before the last 7 days of that window, so the request needs to go in within the first 38 days.
The parcel goes back only to the address written on the envelope, and the request needs the recipient’s name, offender ID number and facility exactly as they appear on it. It is a one-time request, so a child’s drawing has to be requested on its own, the same as any other letter, and requested again for the next one.
If the 45 days pass without a request, the original is destroyed and what stays on file is the colour scan already delivered to the facility.
Cutting Out the Postal Leg
Iowa’s own policy names Pigeonly as the processor, which means a letter you post is travelling to us before it goes anywhere near Anamosa.
That leg is the slow part. A letter posted from Iowa to a Nevada PO Box spends 3 to 5 business days in transit before any processing starts, and the scanning, screening, printing and shipping back to Iowa all happen after that.
Your free Pigeonly account takes the Nevada leg off any letter marked 1106. Write it or add pictures from your phone, and it is printed and prepared at the processing end, so work on it starts the day you send it, and you need no printer, envelope or stamps.
The PO Box address above is still correct and still works. This is the same destination without the days spent getting there.
Email, as a Faster Alternative
Iowa runs offender email through CorrLinks, at $0.25 a message. Register at corrlinks.com.
A message is capped at 13,000 characters or 100 lines, about two pages, on Iowa’s family-facing page. Two of the department’s own policies say 14,000 characters instead. The disagreement is Iowa’s, not ours.
All information on this page comes directly from official government and facility sources.
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Last verified September 9, 2026.