For its first 40 years, HLB primarily served students in grades 10–12.

For the 2013–2014 school year, an all-new Freshman Center was completed to serve ninth-grade students.

Prior to this, freshman students were housed at nearby Evergreen Junior High School.

[3] The school serves the communities of Gray, Schriever, Gibson, Donner, and Chacahoula, as well as parts of Houma and Thibodaux.

HLB also offers students opportunities to participate in clubs and organizations:[4] The school is classified as 5A in the Louisiana High School Athletic Association and competes in several sports:[5]