There are seven branches of HTS in the Houston area. A total of over 450 students are currently (Academic year 2016-17) enrolled in these branches. Tamil language is taught in seven levels (grades) starting from Kinder Garden to Level 7.
There are over seventy voluntary teachers. Alongside of these teachers there are several volunteers helping to run the schools as coordinators, treasurers, secretaries, committee members, etc. Without these volunteers, it is difficult to run the schools.