In their 2008 competition season, the Marching Band earned 3rd place at the USSBA Group 3A championships held at Hershey, Pennsylvania on November 2, 2008.
[18] In their 2009 competition season, the Marching band earned 1st place in New Jersey for group 3A, winning the caption awards for Best Music and Best Visual Effect, as well as taking best in show.
[20] In 2013, the band had an undefeated season, finishing 7-0 and earned first place in New Jersey Group 3A state championship held at Rutgers University.
[21] The band also earned the title of 2013 USBands Group III A National Champions at Metlife Stadium, receiving an all-time high record score of 96.425.
[30][31] The boys' soccer team won the Group I state championship in 2002 and 2003, defeating Arthur P. Schalick High School in the tournament final both seasons.
[32] The 2002 team finished the season with a record of 16–3–1 after winning the Group I title against Schalick by a score of 4–3 in overtime in the tournament final.
[33] The following year, North Warren again met Schalick in the 2003 Group I state championship and won 2–0 at the end of regulation to finish the season 17–3–1.
[34] In 2004, North Warren made it to the state championship game for the third consecutive time, again meeting Schalick, but fell short and lost by a score of 2–1.