Substance Abuse Felony Punishment Facility (SAFP) · State Prison · TDCJ

Clyde M. Johnston Unit

Winnsboro, Wood County, Texas

Visiting schedules change without notice. Always call before traveling.

Call Visiting Office: (903) 342-6166 Info last verified: June 2026

Wood County TDCJ substance-abuse felony punishment facility for men near Winnsboro in East Texas, with program-tied weekend visitation.

Overview

The Clyde M. Johnston Unit is a Substance Abuse Felony Punishment Facility operated by TDCJ near Winnsboro in Wood County, East Texas. TDCJ lists the unit at about 612 beds. It opened in June 1995 and holds men assigned to substance-abuse treatment.

Two facts shape visiting here: the unit’s treatment mission and its small, rural East Texas location.

What Makes the Johnston Unit Different

  • A Substance Abuse Felony Punishment Facility (SAFP) — people are placed here for a court-ordered treatment program rather than a standard general-population assignment
  • Runs In-Prison Substance Use Treatment and a Special Needs SAFP track, along with a faith-based program
  • Because participation is program-based, the length of stay is often shorter than a regular prison term, and the TDCJ inmate locator shows the exact unit a person is assigned to at any given time
  • A small unit — about 612 beds — in a rural section of Wood County reached by local and farm-to-market roads

Visiting Hours and Procedures

The statewide rules above — approval, ID, prohibited items, and dress code — apply at the Johnston Unit. What follows is specific to this unit.

As a treatment facility, the Johnston Unit can tie visiting to a participant’s program phase, so the format and timing may depend on where the incarcerated person is in the program rather than one unit-wide rule. The visiting format also follows the incarcerated person’s classification, so two families arriving the same morning may have different experiences. Confirming the current visiting arrangement with the unit before traveling avoids a wasted trip.

Getting There and Parking

The Johnston Unit is in a rural section of Wood County, in East Texas. The drive finishes on local and farm-to-market roads, and services thin out near the unit.

The trip is by private vehicle. There is no fixed-route public transit to the unit, and Winnsboro is a small town, so families generally drive.

Phones, Mail, and Video

Contact has a sequence to it. A phone number must be on the incarcerated person’s approved contact list before calls can connect, and after intake or a transfer that approval can take time to process. Calls are placed by the incarcerated person on TDCJ’s Securus phone system; a prison cannot be called into. Account setup, rates, and video options are covered in Phone & Video Calls.

Mail is addressed to the incarcerated person by name and TDCJ number at the unit. TDCJ’s statewide mail rules — including how routine personal mail is processed and what is rejected — are covered in Mail & Packages.

Learn More

For detailed information about visiting and communicating with someone at a Texas state prison:

Sources

This page is compiled from the following publicly available sources. Policies change without notice — confirm current details with the facility before relying on them.