[11] St. Joseph is operated by the Brothers of the Sacred Heart, who have been active in American education since their arrival from Lyon, France, in 1847.

[18] The school fields interscholastic teams from freshmen through varsity levels in various sports including football, cross country, soccer, basketball, bowling, ice hockey, swimming, winter track, baseball, golf, lacrosse, spring track, crew, tennis, volleyball, and wrestling.

The school has won state titles in basketball, bowling, cross country, winter and spring track, soccer, swimming, tennis, lacrosse and volleyball.

[20] The 1971 team finished the season with a 14-3-1 record after winning the Parochial A state title with a 1–0 defeat of Notre Dame on a penalty kick with minutes left in regulation.

[25] The tennis team won the Non-Public A state championship in 1987, defeating runner-up Bergen Catholic High School in the finals.

The lacrosse team won the Non-Public A state championship in 2010, defeating St. Augustine Preparatory School in the tournament final.

[34] Saint Joe's participated in the U.S. High School Bowling National Championship in June 2024, where the team finished No.

[citation needed] The St. Joseph athletes are supported by their student fan section, commonly known as the "Falcon Flock.

Published monthly, the newspaper seeks to inform the student body of important events transpiring in the St. Joseph community.

[38] The Falcon has often been recognized by the American Scholastic Press Association for first place among high school newspapers in its national contest, including four consecutive awards from 2005 to 2008.

[40] Frequent segments include "Brother Mike's Movie Review," student columns, and a sports section.

This contest continued to be held under the auspices of the newspaper until it grew into the current school literary magazine, The Vignette, which has since won various awards and received national recognition.

[41] On February 29, 2012, the 2011-2012 College Bowl team traveled to Manhattan to compete in MSG Varsity's annual show The Challenge.

[42][43] The Challenge, hosted by Jared Cotter, showcases the best and brightest high school students from 192 tri-state area high schools[44] testing competing teams on their knowledge of history, arts and literature, current events, math, and science in front of a live studio audience.

[45] St. Joes won its first two matches against DePaul Catholic and Howell Township to advance to the state quarterfinals on March 15, 2012.

[49] On June 21, 2015, a former history teacher, Brother John Spalding (74 at the time), was charged with maintaining child pornography on a computer that the school had provided to him.

[54] The suits for Scarano, Tyrrell, and Smith, were settled out of court and as of July 2018, there has been no resolution or updates to Cunningham's case.