Located on 118 acres (0.48 km2) of wooded property, it serves students in eighth through twelfth grade from across South Jersey under the auspices of the Roman Catholic Diocese of Camden.

The building houses most of the campus' computer labs, the media center, the library, and additional classrooms.

The 5,000 square foot facility includes cross fit equipment, a batting cage, and a weight room.

The principal educational facilities are Augustinian Hall, The Louis & Josephine Buondonno Forum; Edith Favretto Scarpa Arts & Sciences Building; Vincent L. Buondonno Center; Greek Amphitheater; LaRosa Field; Turf Field; and the Navone Athletic Training Facility.

[18] The Saint Augustine Prep Hermits[5] compete in the National Division of the Cape-Atlantic League, an athletic conference comprised of public and private high schools in Atlantic, Cape May, Cumberland, and Gloucester counties that operates under the aegis of the New Jersey State Interscholastic Athletic Association (NJSIAA).

The school offers 22 inter-scholastic sports programs, including: football, soccer, cross country, basketball, swimming, ice hockey, wrestling, winter/spring track and field, chess, baseball, golf, tennis, crew, lacrosse, volleyball, fencing, bowling, sailing, squash, surfing, and rugby.

[5] St. Augustine teams have recently competed in state championships for baseball, hockey, tennis, basketball, golf, swimming, soccer, wrestling, lacrosse, and crew.

[25] The team won the 2001 Parochial South B sectional championship defeating McCorristin Catholic High School by 65–49 in the tournament final.

[29] In the 2015–2016 season, the team won their fifth Non-Public A championship by defeating Don Bosco Preparatory High School by a score of 83–50 in the tournament final.

[47] The 2022-23 team captured the Non-Public A state championship with a 91-79 victory over Christian Brothers Academy in February 2023.

The team repeated as Non-Public A champions in the 2023-24 season, claiming the program’s eighth state title with an 95–75 victory over Bergen Catholic High School in February 2024.

[48] The crew team's Lightweight 8+ won both the Stotesbury Cup Regatta and the Scholastic Rowing Association of America Regatta (commonly referred to as the "Scholastic Nationals") in the 2006 spring season, marking the first national title achieved by St. Augustine Prep.

[52] The team claimed the 2006-07 Non-Public state championship, defeating St. Peter's Preparatory School by a score of 3–1 on March 23, 2007, as the first South Jersey school to win the state title in hockey[53] finishing the season with a 23-0-0 record and becoming the first ice hockey team in New Jersey history to go undefeated and untied.

[55][56] The boys tennis team won the Non-Public Group A state championship in 2007, defeating runner-up Delbarton School in the final match of the tournament.

[57] They boys lacrosse team won the Non-Public Group A state championship in 2022 defeating runner-up Delbarton School in the final game of the tournament.

[59] The 2018 team finished the season with a 26-4 record after defeating Delbarton School by a score of 1-0 in the Non-Public A playoff finals.