The Clay Local School District was created in 1940 to serve the residents of Clay Township and the individual communities of Eden Park, Rosemount, Rubyville, and Twin Valley. For those students who desired to go on to high school before the opening of the high school in 1940, the board of education provided their tuition to Glenwood High School or to Portsmouth High School. "There were buses to transport students to and from school, but there was no cafeteria, therefore, students brought their lunches." The first graduating class in 1940 was nicknamed the "Dirty Dozen" because there were twelve students that walked across the stage for the first time as Clay graduates. The district began with four buildings—one high school and three elementary schools. There were two buildings in Rubyville—the current elementary building, which served as the high school from 1940–1956, and an elementary building, which is now a local church. The district also had an elementary building in Eden Park, which still stands but is no longer used by the district, and one in Rosemount, which was located on the current site of JW Village Market. In 1956, the Rubyville building became the elementary building. With a bond issue to raise $325,000 a new high school building, which opened its doors on February 1, 1956, was built on Clay High Street. Mr. Carl Bandy was the Executive Head of the Clay Local School District when the high school was built in 1955. At that time, the enrollment of the district was 719. One year later, it was 915. During the period of peak employment at the , the enrollment was 1100. A new elementary building was then built in Rosemount. The district currently uses a new PK-12 building constructed in 2010. In 1964 the Rosemount building was constructed, and a band room and junior high wing were added to the high school. In 1998 an additional "wing" was built on to the high school structure. Additional upgrades and renovations have occurred to all three buildings over the years including improvements to the high school gym, new science laboratories, renovations to all the restroom facilities, new roofs, and air conditioning for all three buildings. The enrollment for the district is currently 700.
