[1] It was originally named Early College High School at Mountain View College but was given its current name, after Mexican American community advocate and former DISD board member Trinidad "Trini" Garza, in 2010.
[2] From 2015 to 2018 the Texas Education Agency (TEA) gave Garza all seven distinctions for high performance for each year.
In 2017 Garza's state test results in all subjects were 200% of the statewide averages.
Corbett Smith of The Dallas Morning News characterized the number of the student body as being small.
Brandon Leal, a 12th grade (senior) student indirectly and directly quoted in Smith's article, stated that, in Smith's words, the student body size was "fostering a sense of togetherness, with students banding together to help one another meet high expectations of college coursework.