Since 2005, the university has seen a slight increase in undergraduate enrollment of undocumented students.
In 2005,18 undocumented students were enrolled at Texas State, according to the Office of Institutional Research. In 2010 there were three undocumented students, and in 2012 a total of 75 were registered. There are currently 93 undocumented students attending the university as of March, while 111 took classes during the 2013-2014 school year.
In 2001, then-Governor Rick Perry approved House Bill 1403. The bill allowed undocumented students to receive in-state tuition at any public college or university.