Oneida is a member of the Tri-Valley League (TVL) and Section III of the New York State Public High School Athletic Association. The TVL is one of the most competitive leagues in Central New York and annually produces some of the states premier teams. The TVL has captured numerous state champions in various sports and is recognized as one of the top leagues in the state. Member schools include Oneida, Utica Notre Dame, Whitesboro, New Hartford, Rome Free Academy, Camden, Central Valley Academy, VVS and Utica Proctor.
Section III is made up of 103 member schools from central New York. The section is the largest in the state and reaches as far south as Cortland and as far north as Watertown as well as ranging from Dolgeville in the east to Auburn in the west.