Demonstrating its ranking as a top public high school, OSSM experienced its highest enrollment for an incoming class for the fall of 2019. The Class of 2021 consists of 94 members, 49 female and 45 male. The students come from 24 Oklahoma counties and 32 different towns and cities. They represent 57 different high schools from throughout the state.

The Class also includes eight international students from South Korea, also a record number for the school. Each international student pays tuition, room and board to attend the state-funded OSSM.