How to Send Mail to Someone at Lubbock County Jail — and Why Your Letter Goes to Florida First

Mail a letter to someone at Lubbock County Detention Center, and it probably won't go straight to the jail. Routine mail gets routed to a SmartInmate processing address in Florida, scanned, and delivered electronically to the person in custody.

3 min read Verified from official sources

Lubbock County Detention Center uses Smart Communications (SmartInmate MailGuard) for routine inmate mail. That's why your letter travels to Seminole, Florida first: regular postal mail goes to a SmartInmate PO Box, where it's scanned into the system. Once scanned, the mail becomes available electronically. Depending on the housing unit, the inmate views it on a tablet or wall kiosk. This process applies to everyday items like letters, postcards, and greeting cards.

Note: With MailGuard, the original paper letter is scanned and the inmate views it electronically, not as the physical page you mailed.

Some mail skips the Florida scanning process and goes directly to the facility. Legal mail, court documents, bank statements, and publications should be mailed to: Lubbock County Detention Center Inmate's Name and SO# PO Box 10535 Lubbock, TX 79408 Include a return address on the envelope. Without one, your mail may not be accepted.

Reminder: Do not send legal mail, court documents, bank statements, or publications to the Florida PO Box. Send them to the Lubbock PO Box so they are handled as direct facility mail.

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  • Write the inmate’s full name on the envelope or postcard.
  • Add the inmate’s SO# on the outside of the envelope or postcard.
  • Make sure everything is clearly printed and easy to read.
  • Send regular inmate postal mail to: PO Box 9136, Seminole, FL 33775.

The name and SO# aren't optional details. They're how SmartInmate matches your scanned letter to the right person's account, so your mail actually shows up where your loved one can view it.

After release, people can still access what was scanned while they were in custody. Former inmates log into the public SmartInmate website using their inmate number and password. From there, they can download their postal mail, photos, and messages. Downloads are free, which is helpful for saving personal letters and pictures or keeping copies for records.

Good to know: After release, scanned mail, photos, and messages can be downloaded for free through the public SmartInmate site.

  1. Pick the right mailing address - Send regular mail (letters, postcards, greeting cards) to PO Box 9136 in Seminole, Florida. Send legal mail, court documents, bank statements, and publications to PO Box 10535 in Lubbock, Texas.
  2. Address it with the inmate’s name and SO# - Put both on the outside of the envelope or postcard so it posts to the correct account.
  3. Add a return address for facility-direct items - Legal mail and the other direct-mail categories must have a return address on the envelope.
  4. Use SmartInmate for electronic messaging and content - Smart Communications provides MailGuard electronic mail services through SmartInmate.

Watch out: Regular mail is scanned for electronic viewing. The inmate won't receive your original paper letter. And don't send legal mail or publications to the Florida PO Box.

If you're using SmartInmate to stay in touch, you're using the same service Lubbock County Detention Center contracts with for MailGuard electronic mail. That system handles routine postal mail scanning along with messages and photos. For someone who's been released, the public SmartInmate site is where they sign in with their inmate number and password to download scanned mail, photos, and messages for free.

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