The South Texas Family Residential Center was at first only able to accommodate 480 people when the first group of residents arrive in December 2014 from a Border Patrol training camp located in
Artesia, New Mexico. Capacity expanded over the following months as construction and staffing continued, reaching up to 2,400 residents by mid-2015, with a staff of around 600. It is intended to detain mostly women and children from Central America. On June 12, 2015, it was reported that the facility was holding 1,735 people, approximately 1,000 of whom were children.
CoreCivic, previously called "Corrections Corporation of America", sought a license in 2016 to operate the facility as a General Residential Operation but litigation was brought by
Texas RioGrande Legal Aid on behalf of Grassroots Leadership and the detainees themselves to block the licensing by the
Texas Department of Family and Protective Services. In filings dated September 30, 2018, the operator stated that the property was 100% full. By April 2019, there were 499 women and children in the facility. In January 2026, a five-year-old
Liam Conejo Ramos and his father were brought to the facility. The child's detention had attracted media attention and public outrage after photos of the child being detained in a bunny hat and
Spider-man backpack circulated. On January 24, dozens of detained children staged a demonstration in the detention center, shouting "" (Spanish for "Freedom"). Conejo Ramos's detention brought widespread public attention to the unsanitary conditions of the facility. His health deteriorated quickly due to a lack of medical care and unsafe food and water. A judge ordered his release along with his father, and the same weekend that they were released, ICE locked down the facility and announced that cases of measles were spreading there. At the end of March,
change.org started a petition demanding to close the Center. ==Administration==