HHS athletic teams have earned 34 TSSAA state championships, including three girls state championships during the fall of 2015 (cross country, golf, and soccer), and have received "Best of the Preps" recognition in suburban Shelby County for the last eighteen years (1999–2016).

HHS athletic teams have earned 34 TSSAA state championships, including three girls state championships during the fall of 2015 (cross country, golf, and soccer), and have received "Best of the Preps" recognition in suburban Shelby County for the last eighteen years (1999–2016).

A two-time World Series champion, Cain is regarded as a central figure of the Giants' success in the 2010s for his pitching and leadership.

Beginning with the 2020-21 season, former NBA player Mike Miller was hired as the head boys' basketball coach.

He has immediately established Houston as one of the top teams in the state after recruiting several highly touted prospects.