By 1966, Hillsborough was paying tuition for nearly 500 students to attend school in Somerville for grades 9-12, with that number expected to grow to exceed 900 by 1968.

At Hillsborough's flagship conference, Rutgers Model Congress, the team has won a first or second place delegation award for nine out of ten years.

The ultimate goal is to cultivate community conversations at every level to shift perspectives and to challenge prejudice within NJ.

In 2020, the Student Diversity Initiative hosted a National Day of Racial Healing, and a Christmas Donations to Children in Need.

In 2021, they hosted The Black Experience in America: A Closer Look - a panel in honor of Black History Month, spoke at Kean University to numerous NJ school districts, and hosted conversations with teachers, businesses, schools, and administrators to help evolve the current curriculum.

The Hillsborough High School Raiders[2] competes in the Skyland Conference, which includes public and private high schools covering Hunterdon, Somerset and Warren counties in west Central Jersey, operating under the supervision of the New Jersey State Interscholastic Athletic Association (NJSIAA).

[23] The girls' soccer team was Group III co-champion in 1992 with Northern Highlands Regional High School.

[25] The 2000 team held off a late comeback by Sayreville War Memorial High School to win the Central Jersey Group IV title by a score of 16-13 in the playoff finals.

[26] The baseball team won the Group IV state championship in 2005, finishing the season with a 21-5 record after defeating Watchung Hills Regional High School by a score of 5-0 in the tournament final.

[34] The boys' track team was Group IV indoor relay co-champion in 2008 with Trenton Central High School.

[35] In 2008, Mary Kate Lynch was honored at the NJSIAA Annual Scholar Athlete Luncheon representing Hillsborough High School.

[38] In 2023, the team won the Group IV sectional title, defeating South Brunswick High School 3-2 in the final.

[41] In 2009, the team won the overall state championship by defeating Randolph High School by a single point, 78-79, to win the Meet of Champions in Holmdel.