The Canadian government chose to highlight the school for its program to improve intercultural understanding.

Sports at Johnston Heights include Cross Country, Volleyball, Basketball, Soccer, Badminton, Track and Field, Golf, Ultimate Frisbee, Hockey, Tennis, Cricket, football, and Girls' Rugby.

The Johnston Heights Leadership Team (JHLT) is known for there avid participation in activities outside of the school campus.

JHLT have helped coordinate many Runvan events, including the BMO marathon, which occurred on May 1, 2022.

Johnston Heights offers French, Spanish and language challenge courses for senior students.