The Hudson Catholic Regional High School Hawks compete in the Hudson County Interscholastic League, which is comprised of public and private high schools in Hudson County and operates under the supervision of the New Jersey State Interscholastic Athletic Association. With 364 students in grades 10-12, the school was classified by the NJSIAA for the 2019–20 school year as Non-Public B for most athletic competition purposes, which included schools with an enrollment of 37 to 366 students in that grade range (equivalent to Group I for public schools). The football team competes in the United Blue division of the North Jersey Super Football Conference, which includes 112 schools competing in 20 divisions, making it the nation's biggest football-only high school sports league. The school was classified by the NJSIAA as Non-Public Group II for football for 2018–2020.