The Peck curriculum includes communication arts, drama, English, library studies, math, music, sports, reading, science, history, social studies, technology, themes or family life, visual arts, woodworking, and world languages.

Commencement is held every year for graduating eighth graders, as students move on to secondary school.

The Peck Commons was completed in 2019 after the old gym in front of Lindenwold mansion was demolished to create a new quad for students.

Notable headmasters include Mr. Lorraine T. Peck (1917–1944), Mr. Philip S. Hesseltine (1946–1954), Mr. Rudy Deetjen (1977–1994), and Mr. John J. Kowalik (2003-2013).

In lower school grades, students learn fundamental motor skills, sports technique, teamwork, and sportsmanship.

Peck also partakes in CML (Continental Math League), and recently 7th graders Roshan Prasad and Collin Garvey received first place honors.

They also compete in NJML (New Jersey Math League), where Declan Garvey and Harley Zhang got first place in 7th and 8th grade respectively.