Edward Tyrrell was named headmaster, the first layperson to lead the school, and retired in 2003 after 33 years of service to the Summit.

Following his retirement, Kelley Schiess has succeeded Rich Wilson as head of school as of July 1, 2022.

[6] Summit's main building, designed by architect Edwin Forrest Durang, was first constructed in 1890, then renovated in 1930.

In 2004, the school suffered a partial collapse after excavation for an adjacent foundation wall undermined the structure.

[9] In 2017, Pat and Joe Perin donated two antique brass candelabra to the school, items salvaged from the Albee Theater.

The candelabra were made for John Jacob Astor IV, the wealthy financier, and stood outside the entrance to the dining hall of his New York mansion.

The Summit Country Day Latin Club is a local chapter of both the Ohio Junior Classical League (OJCL)[11] and National Junior Classical League (NJCL).