The school was the 87th-ranked publichigh school in New Jersey out of 339 schools statewide in New Jersey Monthly magazine's September 2014 cover story on the state's "Top Public High Schools", using a new ranking methodology. The school had been ranked 115th in the state of 328 schools in 2012, after being ranked 138th in 2010 out of 322 schools listed. The magazine ranked the school 194th in 2008 out of 316 schools. The school was ranked 167th in the magazine's September 2006 issue, which surveyed 316 schools across the state. Schooldigger.com ranked the school 156th out of 381 public high schools statewide in its 2011 rankings which were based on the combined percentage of students classified as proficient or above proficient on the mathematics and language arts literacy components of the High School Proficiency Assessment.
Extracurricular activities
The Marching Patriots
North Warren is especially known for their award-winning marching band. The North Warren Marching band won the United States Scholastic Band Association Group 2A Championships in the Fall 2000 Season with their show, "The Art of War". During the 2005 season the band earned 3rd in the state championships along with the state color guard title. In 2007 the Marching Band became State Champions in group III A. In their 2007 competition season, the Marching Band earned 1st place in New Jersey for group 3A. 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. 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. In their 2010 competition season, the Marching band earned 1st place in New Jersey for group 3A, again. 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. 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.
Aurora Indoor Color Guard
From 1989 to 1994 North Warren Regional High School was also home to the award-winning Aurora Indoor Color Guard. Aurora began as a Scholastic Novice guard in the TIDA circuit, moving up to a Scholastic Intermediate guard in 1992, and moving up to a Scholastic Advanced guard in 1993. Also in 1993, performing to "I Melt With You" by Modern English, Aurora placed 8th in the world at the WGI World Championships in Dayton, Ohio as a WGI Scholastic A class Finalist. In May 1994, the Aurora indoor color guard performed for the last time, in Wildwood, New Jersey.
Athletics
The North Warren Regional High School Patriots 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 481 students in grades 10-12, the school was classified by the NJSIAA for the 2015-16 school year as North I, Group II for most athletic competition purposes, which included schools with an enrollment of 495 to 762 students in that grade range. The school participates in cooperative girls' and boys' swimming programs with Belvidere High School as the host school / lead agency, under an agreement that expires at the end of the 2017-18 school year. The boys' soccer team won the Group I state championship in 2002 for the first time ever with a win over Arthur P. Schalick High School by a score of 4-3 in overtime in the tournament final. The following year, North Warren again met Schalick in the 2003 Group I state championship and won 2-0 at the end of regulation. In 2004, North Warren made it to the state championship game for the third time in a row again meeting Schalick but fell short and lost 2-1 at the end of regulation. The wrestling team won the North I Group I state sectional championship in 2006 and 2007.
The district's board of education, with nine members, sets policy and oversees the fiscal and educational operation of the district through its administration. As a Type II school district, the board's trustees are elected directly by voters to serve three-year terms of office on a staggered basis, with three seats up for election each year held as part of the November general election. The board appoints a superintendent to oversee the day-to-day operation of the district. Seats on the board of education are allocated based on the population of the constituent municipalities, with four seats assigned to Blairstown Township, two to Frelinghuysen Township, two to Knowlton Township and one to Hardwick Township.