How to Send Mail to Someone at Johnson County Adult Detention Center (which address to use)
Sending mail to someone at Johnson County Adult Detention Center? You'll need to pick the right address based on what you're sending. There are three different mail paths, and using the wrong one is a common reason mail gets delayed or rejected.
Johnson County Adult Detention Center uses different addresses depending on what you're sending. Regular mail - letters, postcards, greeting cards - gets processed off-site through Smart Communications/MailGuard and goes to a P.O. Box in Seminole, Florida. Include the inmate's name and CFN. Pre-approved packages, newspapers, and magazines go directly to the jail in Olathe, Kansas, with your name plus the inmate's CFN on the envelope. Legal mail from attorneys also goes to the Olathe address but must be clearly marked as privileged and sent via United States Postal Service (USPS).
For everyday letters, Johnson County routes non-privileged mail through Smart Communications/MailGuard. Your letter doesn't go directly to the jail in Olathe - it's sent to Smart Communications for processing. Include the inmate's name and CFN so it gets matched correctly.
Mailing address (non-privileged mail): Inmate’s Name – Inmate’s CFN \nC/O Smart Communications \nJohnson County Sheriff’s Office \nP.O. Box 9176 \nSeminole, FL 33775-9176
MailGuard offers a free account that lets you track your mail. Sign up and you can check delivery status, get notified if something's rejected, and download copies of processed mail.
Sending a pre-approved package, newspaper, or magazine? Use the Johnson County Adult Detention Center's Olathe address - not the Smart Communications P.O. Box. These items need approval before you mail them, so handle that first.
Mailing address (pre-approved packages/newspapers/magazines): Your Name – Inmate’s CFN \nJohnson County Adult Detention Center \n101 North Kansas Ave \nOlathe, KS 66061
Legal mail works differently. Attorneys sending mail to a client at the detention center must clearly mark it as legal mail and send it through the United States Postal Service (USPS). Address it to the Olathe facility with the inmate's name and CFN.
Mailing address (legal/privileged mail via USPS): Inmate’s Name – Inmate’s CFN \nJohnson County Adult Detention Center \n101 North Kansas Ave \nOlathe, KS 66061
Here, a "package" means anything requiring more postage than a first-class stamp. If you're sending something thicker or heavier than a standard letter, treat it as a package and get approval before mailing.
Checklist Addressing
- ✓ Letters/postcards/greeting cards (non-privileged): Inmate’s Name – Inmate’s CFN, C/O Smart Communications, Johnson County Sheriff’s Office, P.O. Box 9176, Seminole, FL 33775-9176
- ✓ Pre-approved packages/newspapers/magazines: Your Name – Inmate’s CFN, Johnson County Adult Detention Center, 101 North Kansas Ave, Olathe, KS 66061
- ✓ Legal/privileged mail (attorney; USPS; clearly marked): Inmate’s Name – Inmate’s CFN, Johnson County Adult Detention Center, 101 North Kansas Ave, Olathe, KS 66061
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