It is operated by Three Rivers Independent School District.

The Three Rivers Bulldogs compete in cross country, volleyball, football, basketball, golf, tennis, track, softball & baseball.

Three Rivers High School students also compete in various UIL sanctioned academic events such as speech and debate, one act play, mathematics, and writing events.

[4] In 2017, the principal reported a teacher's aide to the police for an "inappropriate relationship" with two students, leading to an arrest.

This article about a high school in Texas is a stub.