The River Valley Local School District was founded in 1964 to service parts of Marion County including the villages of Caledonia, Waldo, Martel and Claridon. River Valley Local Schools is comprised of four buildings. There are two K-5 elementary buildings: Heritage and Liberty. There is a 6th-8th grade middle school and a 9th-12th high school. River Valley has an average enrollment of 2000 students.