[1] The present high school building located on Jackson Valley Road in Washington Township opened in September 1967.

An expansion of the high school building was completed in 1992, which included a new library and gym to accommodate the addition of students in ninth grade.

A second expansion at the high school during the first decade of the 21st century added more classrooms, office space, gym/weight rooms, and conversion of the original gym to a new library to meet growing enrollment in the district.

The student eventually filed a case that led to a decision by the United States Court of Appeals for the Third Circuit.

[15] The Warren Hills High School Blue Streaks[2] compete in the Skyland Conference which is comprised of public and private high schools in Hunterdon, Somerset and Warren counties, and operates under the supervision of the New Jersey State Interscholastic Athletic Association (NJSIAA).

[20] Warren Hills wrestling ranks third all-time in the number of individual state champions crowned, with 36 through 2024.

At the conclusion of the winter break tournament, there is a tourney champion and outstanding wrestler trophy presentation.

[24] The team won the 2007 North II, Group III state sectional championship with a 33-29 victory against Scotch Plains-Fanwood High School.

[26][27] The 2000 football team (11-1) won the North II Group III state sectional title, with a 21-14 win against West Morris Central High School.

The team won the Group III championship in 2014 (defeating runner-up Ocean City High School in the final game of the tournament) and in 2015 (vs.

[32] The 2015 team repeated as Group III champion with a 1-0 win in the championship game, defeating Ocean City for the second year in a row.

They came back from a 10-0 deficit at the start of the game and defeated the 19th-ranked team in the state Chatham High School by a final score of 52-46 to earn the program's first ever sectional championship.