[4] In 1949, the Great Neck School District acquired the 124-acre (0.50 km2) South complex in Lake Success from the former estate of Henry Phipps Jr. – a steel mogul and one-time partner of Andrew Carnegie.

When the estate was donated, there was a stipulation that part of it be kept in its natural state, a condition that was met during construction.

[10] One of the final remaining intact portions of the Long Island Motor Parkway, the first road in the United States built solely for automobiles, runs through the campus of the High School.

Shine for his respected status and work as superintendent in the Great Neck School District.

[17] Great Neck South’s disabled students attend special education classes.

19% were recognized as finalists or received Letters of Commendation from the National Merit Scholarship Corporation.

[17] One of the most popular events at Great Neck South is Cultural Heritage Night, where students put on a two-hour extravaganza of multicultural art, theater and dance.

[21] Rebel War is a tradition in which the four teams, divided by graduation year, compete for fun.

In years prior to 2023, the school's annual Rebel War has been cancelled due to COVID.