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State prison operated by Texas Department of Criminal Justice. TDCJ Region I. Capacity ~1,090. Custody levels housed: G1-G3, Security Detention, Transient.
Background
Texas State Penitentiary at Huntsville or Huntsville Unit (HV), nicknamed "Walls Unit", is a Texas state prison located in Huntsville, Texas, United States. The approximately 54.36-acre (22.00 ha) facility, near downtown Huntsville, is operated by the Correctional Institutions Division of the Texas Department of Criminal Justice. The facility, the oldest Texas state prison, opened in 1849.
The unit houses the execution chamber of the State of Texas. It is the most active execution chamber in the United States, with 600 (as of May 18, 2026) executions since 1982, when the death penalty was reinstated in Texas (see Lists of people executed in Texas).
come to the realization that changing a man’s heart in a positive way is beneficial in making that person a productive member of society,” Jim Willett, the longtime warden of the Huntsville Unit in Texas, told me. Cain’s legacy is perhaps best captured in the twice-yearly rodeo he oversaw on the grounds of Angola, where prisoners would nearly get gored by massive bulls in front of crowds of
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Henry Lee Lucas1936–2001 · criminal
Ronald Clark O'Bryan1944–1984 · optician