[3] The school, constructed on a 65-acre (26 ha) site and a maximum capacity of 1,150, opened in September 1975 with an enrollment of 850 students.

[4][5] Since the 2010–11 year, the school has offered a parent-student portal, which provides parents and students access grades online any time they want.

Stewart, a history, social studies and enrichment teacher, has been on the faculty of Vernon Township High School since 1991.

[14][15] The school had participated in the Sussex County Interscholastic League until the SCIL was dissolved in 2009 as part of the NJSIAA realignment.

[21] In early 2021, plans were made for the high school to renovate the football field and surrounding track through FieldTurf.

[22] Since the school has begun participating in league sports throughout the county and state, the Vernon Vikings have received numerous awards and championships.

The school's legacy of success in cross country dates from the 1978 season, when the team was undefeated and won the S.C.I.L.

[24] The ice hockey team won the McMullen Cup in 2005 with a 5-3 come-from-behind win against Ridgewood High School in the championship game played at South Mountain Arena.

[27] The Varsity Softball team won the North I Group II, 2017 Northwest New Jersey Athletic Conference, Freedom League Championship.

In 2018, the team won their first Hunterdon-Warren-Sussex (HWS) tri-county tournament with a victory against North Hunterdon High School.

On May 12, 2007, the team finished in 2nd place at PARC X, an off-season competition held at the Tunkhannock Area High School.

Vernon High School organizes several trips abroad associated with foreign language classes every year.

Included were two more tennis courts in addition to the existing four, a renovated auditorium with new sound systems and more seating, replacement of the current six-lane track with a state-of-the art eight-lane track along with artificial turf on the football field, more seating, bathroom facilities, and lighting.