In 1969, Southdown High School (originally Houma Colored High School), which educated black students in Terrebonne Parish, was closed.

[3] From 2015 to 2016, the Louisiana State Department of Education score for this school declined from 100.1 to 99.3; as an "A" level school makes 100 points or more, Terrebonne's rank fell from A to B.

In all other areas of Terrebonne Parish, 9th graders were already at the high school level.

From February 2017 until the fall of 2017, existing 9th-grade students were reclassified as Terrebonne High students but continued to take classes in portable buildings at Houma Junior High.

[5] Terrebonne High athletics competes in the LHSAA.