The Lodi High School Rams participate in the
North Jersey Interscholastic Conference, which is comprised of small-enrollment schools in Bergen,
Hudson,
Morris and
Passaic counties, and was created following a reorganization of sports leagues in Northern New Jersey by the
New Jersey State Interscholastic Athletic Association (NJSIAA). With 646 students in grades 10–12, the school was classified by the NJSIAA for the 2019–20 school year as Group II for most athletic competition purposes, which included schools with an enrollment of 486 to 758 students in that grade range. Prior to realignment that took effect in the fall of 2010, Lodi High School was a member of the smaller
Bergen-Passaic Scholastic League (BPSL). The school was classified by the NJSIAA as Group II North for football for 2024–2026, which included schools with 484 to 683 students. The 1939 boys' basketball team won the Group III state championship with a 26–20 victory against
South River High School in the final game of the playoff tournament. The football team won the North I Group II state sectional championship in 1992 and 1998 and the North II Group II title in 2005. The 1992 team finished the season with a record of 11-0 after winning the North I Group II sectional title with a 7–6 win against two-time defending-champion
Lenape Valley Regional High School in the championship game. The team won the North II Group II state sectional championship in 2005, defeating
Chatham High School 21–7 in the tournament final. The baseball team won the North I Group II sectional championship in 2003. The girls' volleyball team qualified for the state tournament in both 2006 and 2007, falling in the tournament's first round both years. Jerry Rinaldi was state wrestling champion (189 lb) in 2003. Keith Dobish was the wrestling state champion (189 lb) in 2006. ==Administration==