Main Profile

At A Glance

St. Mary's Prep

St. Mary's Prep is a coeducational private Catholic traditional school for students in grades Pre-K through 8.

Institution Type: Private Setting: Suburban


St. Mary's Prep's Full Profile



St. Mary's Prep says

Since 1954, parents have chosen St. Mary Prep to provide an academically challenging, family-centered learning environment that has its foundation in the Catholic faith. St. Mary Prep has been a part of the Denville community for over 50 years and is committed to helping students excel in all areas of learning. Academic achievement is high, with students consistently scoring well above the national average on annual standardized tests. The curriculum meets the New Jersey State Core Curriculum Standards, as well as the Curriculum Guidelines set forth by the Diocese of Paterson. Character Education is not a workshop, it's the foundation of our school. Students participate in a wide variety of activities that help people in need which fosters a sense of civic responsibility. Our children are taught respect, acceptance, cooperation, and caring. St. Mary Prep is a proud member of several national associations responsible for accrediting schools of excellence including Advanced Ed and the National Catholic Educational Association.



Private schools, including parochial and boarding, are funded through tuition and fees. The cost varies from school to school, but most families pay tuition to attend them. Many private schools offer financial aid or discounts, so it's worthwhile to ask about these options.


  (973) 627-2606

Students and Faculty

Students and Faculty

Enrollment Data

Total Enrollment 257
Enrollment By Grade
Grade Number of Students
Pre-K 38
Transitional KG 22
Kindergarten 32
1 32
2 23
3 35
4 17
5 11
6 16
7 16
8 15

St. Mary's Prep's relatively variable enrollment profile may offer insights into student retention rates, local population changes, real estate costs, and the accessibility of alternative educational options. to find out more about the specific factors influencing St. Mary's Prep's enrollment numbers.

Student Teacher Ratio 15 : 1
Gender 35% Male / 65% Female
Student Diversity
Percentage of Student Body
White 60%
Multi-racial 9%
Hispanic/Latino 9%
Black or African American 4%
Asian 5%


  • Basketball
  • Soccer
  • Track and Field
  • Basketball
  • Soccer
  • Track and Field

Associations & Memberships

Questions about St. Mary's Prep

Want more info about St. Mary's Prep? Get free advice from education experts and Noodle community members.