Students who wanted some years of secondary education, but were unable to travel to Ottawa Collegiate Institute could take a few courses on the top floor of Broadview.

[3][4] In 1919, the provincial government made school attendance mandatory until age 16, creating a rapid increase in enrollment.

Nepean is known for its strong academic success with roughly 94% of students graduating to higher education (53% being Ontario Scholars).

Nepean boasts one of the highest number of interscholastic sports teams in the Ottawa Carleton District School Board.

Nepean attended the Ontario Championships (OFSAA) in boys Rugby (2015, 2016), boys Soccer (2007), girls Soccer (2010), X-Country (2006–2011), Golf (2007–2011), Alpine Skiing (2007–2011), Nordic Skiing (2006–2011), Track & Field (2006–2011), Field Hockey (2011, 2015, 2016), Tennis (2010–2011), and Swimming (2008–2011).