[12] The school was ranked 224th in the nation and 19th in New Jersey on the list of "America's Best High Schools 2012" prepared by The Daily Beast / Newsweek, with rankings based primarily on graduation rate, matriculation rate for college and number of Advanced Placement / International Baccalaureate courses taken per student, with lesser factors based on average scores on the SAT / ACT, average AP/IB scores and the number of AP/IB courses available to students.

[13] The New Providence High School Pioneers[2] compete in the Union County Interscholastic Athletic Conference, which is comprised of public and private high schools in Union County and was established following a reorganization of sports leagues in Northern New Jersey by the New Jersey State Interscholastic Athletic Association (NJSIAA).

[18] NPHS's teams have won multiple state championships in sports such as track & field, baseball, basketball, football, soccer, tennis, golf, swimming, and wrestling.

[21] The 1965 team finished the season with a 21–2 record after winning the Group I title with a 68–59 victory against defending-champion Wildwood in front of 9,500 spectators at Atlantic City Convention Hall.

[22][23] The 1999 team won the Group I title with a 39–37 win against Highland Park on a basket scored as time ran out on the clock.

[25] The Pioneers have had four state wrestling champions: John Ferrara (1969), Rich Billitz (1976), Donnie DeFilippis (1999, who came in second twice before winning the title), and Noran Elmahroukey (2020).

[26][27] On March 13, 2012, DeFilippis was inducted into the Region 3 Hall of Fame for his accomplishments in High School and on the Division 1 level in college.

The Pioneers went 10–1 en route to the North II, Group I state championship with a 21–8 victory against Lincoln High School of Jersey City.

Schmidt had a perfect game until the sixth inning when a passed ball on a dropped third strike led to a run scored without any hits.

[37] The 1999 team finished the season with a record of 22–2–1 after defeating Pitman by a score of 1–0 in the Group I championship game played at Kean University.

[38] The team won the 2003 NJSIAA North II Group I sectional championship with a 1–0 win over David Brearley High School.

[39] In 2007 the boys soccer team won the 2007 NJSIAA Central Group I Sectional Championship with a 3–2 win in over time against Metuchen High School.

The team won the Group I state championship in 2010 with a 4–1 win over South Jersey champs Pitman High School.

Between 2010 and 2014, the boys tennis team also won the most consecutive state sectional championships, five in a row, beating Jonathan Dayton High School each time.

[49] The 2007 team won the Central Jersey, Group I state sectional championship with a 5–0 win over Bound Brook High School in the tournament final.

[51] The 2008 girls tennis team won the North II, Group I state sectional championship with a 4–1 win over County Prep High School.