The present location of the school was established in the fall of 1969, being moved from its original location at 1415 Girard Avenue.[4] The old high school was converted to Middletown Middle School for the remainder of its existence until demolished in September 2018.[5]
In 2016, a $96 million renovation project began on the high school, updating the building and arena, as well as adding a new middle school building adjacent to it.[6] The new Wade E. Miller Arena was completed and opened in December 2017, and the rest of the building, as well as the new middle school, officially opened in August 2018.
Ohio High School Athletic Association State Championships
Boys Basketball – 1944, 1946, 1947, 1952, 1953, 1956, 1957.[7] The Middies' seven boys basketball state championships was the most of any High School in Ohio until Akron St. Vincent-St. Mary broke the record with their eighth championship in 2018.[8]