Article · Wikipedia archive · Last revised Jun 25, 2026

Mark Stiles Unit

Mark W. Stiles Unit is a Texas Department of Criminal Justice men's prison located in an unincorporated area of Jefferson County, Texas, near Beaumont. The unit, located along Farm to Market Road 3514, is 4 miles (6.4 km) southeast of downtown Beaumont. The approximately 776 acres (314 ha) unit is co-located with the Gist Unit and the LeBlanc Unit.

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Jun 25, 2026
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Mark W. Stiles Unit
Location in Texas
Location3060 FM 3514
Beaumont, Texas 77705
Coordinates29°59′36″N 94°03′01″W / 29.9932333°N 094.0503167°W / 29.9932333; -094.0503167
StatusOperational
Security classG1-G5, Security Detention, Safekeeping
Capacity2,981
OpenedJune 1993
Managed byTDCJ Correctional Institutions Division
WardenVernet Davis
CountyJefferson County
CountryUnited States
Websitetdcj.texas.gov/unit_directory/st.html

Mark W. Stiles Unit is a Texas Department of Criminal Justice men's prison located in an unincorporated area of Jefferson County, Texas,1 near Beaumont. The unit, located along Farm to Market Road 3514, is 4 miles (6.4 km) southeast of downtown Beaumont. The approximately 776 acres (314 ha) unit is co-located with the Gist Unit and the LeBlanc Unit.2

The unit opened in June 1993. The unit serves as the University of Texas Medical Branch hub site for treatment of HIV and other infectious diseases.2 As a result, the Stiles facility houses many HIV positive prisoners.3 A hospice for prisoners with HIV opened at Stiles in 1997.4

The unit has offered Buddhist meditation classes since 2003.5

In 2011 the metal products plant closed; its operations were consolidated to the plants at the Coffield Unit and the Powledge Unit.6

In 2023 the unit saw three inmate on inmate homicides. The homicides were part of a trend of rising violence in TDCJ facilities which prompted a statewide lockdown of all facilities. 7

Notable prisoners

References

References

  1. "2020 CENSUS - CENSUS BLOCK MAP: Jefferson County, TX" (PDF). U.S. Census Bureau. p. 14 (PDF p. 15/50). Retrieved August 14, 2022. Mark W Stiles Unit
  2. "Stiles Unit Archived January 25, 2010, at the Wayback Machine." Texas Department of Criminal Justice. Retrieved on July 20, 2010.
  3. Bass, Emily. "Separate but Equal?" HIV Positive. December/January 2000. No. 6. Here Publishing. 30. Retrieved from Google Books on July 20, 2010. ISSN 1522-3086.
  4. "Providing Services To Inmates Living With HIV," Centers for Disease Control. August 2001. 3 (3/3). Retrieved on July 20, 2010.
  5. Turner, Allan. "Meditation helps inmates reach 'natural awareness'." Houston Chronicle. Saturday September 3, 2011. Retrieved on September 23, 2011.
  6. Ward, Mike. "Prison industry programs a victim of economic recession," Austin American-Statesman. Sunday September 4, 2011. Retrieved on September 23, 2011.
  7. Eslinger, Scott. "30% of Texas inmate deaths in 2023 happened in Southeast Texas prisons," Friday September 8, 2023. Retrieved on November 14, 2025.
  8. "Henley, Elmer Wayne Jr" Texas Department of Criminal Justice. Retrieved on November 11, 2022.
  9. https://vimeo.com/143798965 The Dewberry brothers’ case: on the trail of the secrets
  10. https://inmate.tdcj.texas.gov/InmateSearch/search.action
External links