Some classes were housed in temporary portable classrooms until 1971, when the Nackawic Junior High School was finished.

In the 1990s, an addition was built on to accommodate grade 9, which was transferred back from Nackawic Middle School.

The French education program, originally a separate school (École Heritage de Nackawic), was established in October 1984 and housed in a group of portable classrooms[4] to the side of the main building.

The Nackawic High School Boys' Soccer Team won its first provincial championship in the fall of 2014.

Winning the provincial championship capped off a perfect season- regular season champions and regional champs.