County has undergone several renovations and expansions since it was opened. The first expansion occurred in 1966, with the addition of a Vocational Education Wing attached to the side of the front portion of the building (Vocational Education has since moved to C.S. Monroe Technology Center). In 1976, a second gym space was added (which is now used as the wrestling room). In 1990, a new science wing and cafeteria were built in the back of the high school, which allowed the old cafeteria to become the new site of the current band and chorus rooms. One large problem with the science wing was that it was located upstairs from the cafeteria, but was unconnected to the rest of the school's second story. In 1996, a new main gymnasium and girls locker rooms were completed. The new gymnasium can carry about 1,300 people, and the old main gym (which could only carry about 500) became the auxiliary gymnasium. Six foundation based trailers were built to replace classrooms that were displaced by the project.