A mother of one of the students wrote the Alma Mater, they picked the school colors, the mascot.

The original IRHS, which opened in 1967, was on Old Greenbrier Road, while construction on the current building took place.

The single-story facility opened in winter 1972 on Dunbarton Road, receiving its own address of 1969 Braves Trail in the mid-1990s.

The Old Greenbrier Road building currently serves as Indian River Middle School.

In 1995, overcrowding at Indian River forced the school to add an extension, known as the "new wing."