The Gateway Regional High School Gators compete in the
Colonial Conference, which is comprised of public high schools in
Camden and Gloucester counties, and operates under the supervision of the
New Jersey State Interscholastic Athletic Association (NJSIAA). With 405 students in grades 10-12, the school was classified by the NJSIAA for the 2022–24 school years as Group I South for most athletic competition purposes. The football team competes in the Royal Division of the 94-team
West Jersey Football League superconference and was classified by the NJSIAA as Group I South for football for 2024–2026, which included schools with 185 to 482 students. The school participates as the host school / lead agency for joint cooperative cross country running, co-ed swimming and wrestling teams with
Woodbury Junior-Senior High School. These co-op programs operate under agreements scheduled to expire at the end of the 2023–24 school year. The field hockey team was the South II sectional champion in 1971 and won the South Jersey Group I state sectional championship in 2001. The 1978 softball team ran their record to 18-3 after winning the Group II state championship by a score of 6-2 in the final of the tournament against a
Queen of Peace High School that came into the game undefeated. The 1992 boys' soccer team finished the season with a record of 21-3 after winning the Group II state championship, defeating
Harrison High School by a score of 2-0 in the tournament final. The boys' baseball team won the 2009 South Jersey Group I NJSIAA state sectional Title, advancing to the Group I tournament where they lost to
David Brearley High School 6–2 in the semi-final round. == Administration ==