A group of Clarksville parents met for the first time on November 14, 1969, to organize a new school for the area.

In August 2008, Clarksville Academy installed ActivClassroomss in a majority of the rooms to allow interactive learning with the students.

After a 15–8 record, and victories in the District 10-A,[4] Region 5-A,[5] and Class A sectional,[6] tournaments, the varsity boys basketball team, led by 6'6" Malcolm Smith[7] entered the 2009 TSSAA Class A state tournament for the first time in school history.

The Cougars fought hard against the Grace Baptist Golden Eagles in the finals and won 82–77 in double overtime.

[citation needed] The school is accredited by the Southern Association of Colleges and Schools, and hold membership with the National Association of Independent Schools, Educational Records Bureau, Fellowship of Christian Athletes, Key Club and Builders Club, National Honor and National Junior Honor Societies, and College Board.