The school was ranked 235th in New Jersey out of 339 schools statewide in New Jersey Monthly magazine's September 2014cover story on the state's "Top Public High Schools", using a new ranking methodology. The school had been ranked 289th in the state of 328 schools in 2012, after being ranked 200th in 2010 out of 322 schools listed. The magazine ranked the school 174th in 2008 out of 316 schools. The school was ranked 158th in the magazine's September 2006 issue, which surveyed 316 schools across the state. In the 2013–2014 school year, Hopatcong High School ranked eighth in Sussex County out of nine other public high schools in SAT scores.
Extracurricular activities
The Hopatcong High School Chiefs compete in the Northwest Jersey Athletic Conference, following a reorganization of sports leagues in Northern New Jersey by the New Jersey State Interscholastic Athletic Association. With 394 students in grades 10-12, the school was classified by the NJSIAA for the 2015–2016 school year as North I, Group I for most athletic competition purposes, which included schools with an enrollment of 187 to 490 students in that grade range. Prior to the 2010 realignment, the school participated in the Sussex County Interscholastic League until the SCIL was dissolved in 2009. Hopatcong High School maintains a variety of boys' and gitls' interscholastic sports teams including cross country, soccer, cheerleading, wrestling, basketball, bowling, golf, track and field, softball, baseball and tennis. The school operates as the host school and lead agency for a joint bowling program with Mount Olive High School, under an agreement that expires at the end of the 2017–2018 school year. In 2014, Hopatcong and Hackettstown High School began partnering with Mount Olive High School on a co-operative boys' ice hockey team, which plays under the Mount Olive name. The boys' wrestling team won the 1997 North I Group II state sectional championship. In 2001 and 2005, the varsity football team was the North I, Group II state champions. In 2005, the team beat Sparta High School 20-14 in overtime in the final game of the tournament. During 2004, the varsity cross-country team became the North I, Group II state champions. In 2005, the boys' cross country team was 15th in the state at the New Jersey Meet of Champions. The same year, the team successfully defended its state sectional title and was second in Group II The school's track team had three consecutive undefeated seasons, from 2010 to 2012.
