[13] The Somerville High School Pioneers[2] have historically competed in the Skyland Conference, which is comprised of public and private high schools located in Hunterdon, Somerset and Warren counties in west Central Jersey and operates under the supervision of the New Jersey State Interscholastic Athletic Association.

[19] The team won the program's first playoff-era title in 1976, defeating Red Bank Regional High School by a score of 27–6 in the Central Jersey Group II sectional championship game.

[21] With a 27–14 win against Manasquan High School, the 1979 team won the Central Jersey Group III title and finished the season 11–0.

[24] Pioneer football teams reached the Central Jersey Group II sectional playoffs in 1994, 1999–2001, 2004, 2005, 2016 and 2017, winning seven Skyland Conference championships over that time period.

[28] The 2017 team won Somerville's eighth sectional championship, its first in 23 years, against Rumson-Fair Haven High School in the playoff final of the Central Jersey Group III state sectional tournament, in a game played at High Point Solutions Stadium on the campus of Rutgers University.

[29][30] The boys' basketball team reached the Central Jersey Group sectional finals in 1992 and 2007 and won the Somerset County Tournament in 1999.

[36] The boys' soccer team won the 2006 Central Jersey Group II sectional championship with a 3–1 win over Raritan High School.

[38] The girls' soccer team defeated Shore Regional High School 3–1 to win the 2006 Central Jersey Group II sectional title.

[40] The team won 72 consecutive dual meets and was Central Jersey Group II sectional champion for eight straight seasons (2001–2008).

[42] The boys' lacrosse team, founded in 2004, won Central Jersey Group II sectional championships in 2013 and 2014, compiling a 35-game home winning streak dating back to 2011.