St. Mary School
32a Carroll Ave, Williamstown, NJ 08094Open, per Google (checked Oct 2, 2026)
St. Mary School is a Roman Catholic private school in Williamstown, NJ teaching grades PreK-8. It reported 344 students and about 12.1 students for every teacher in the 2023-24 federal survey.
School facts
- Grades
- PreK-8
- Students
- 344
- Teachers
- 29
- Students per teacher
- 12.1
- Student body
- Coeducational
- Affiliation
- Roman Catholic
- Setting
- Suburb
These are the numbers the school gave the U.S. Department of Education for the 2023-24 school year, published in July 2026. The survey counts students in kindergarten to grade 12, not pre-K. Enrollment and staffing move every year, so ask the school for today’s figures. Where this comes from. Something wrong? Tell us and we will fix it.
St. Mary School tuition
We have not verified a tuition figure for St. Mary School yet. Every private school sets its own price and most share it on request: ask for the full-year tuition for your child’s grade plus required fees, or look for a tuition page on the school’s website.
Questions to ask St. Mary School
- What is the full-year tuition for my child’s grade, and which fees are required on top of it?
- Is there a waitlist or an application deadline for my child’s grade?
- Do you offer financial aid, sibling discounts or payment plans?
A school is the only source for its current price and open seats. Its website or admissions office can answer these.
Other private schools nearby
| School | Grades | Students | Miles |
|---|---|---|---|
| Lasting Legacy Academy | PreK-5 | 25 | 3 |
| South Jersey Christian Academy | PreK-8 | 137 | 3 |
| St. Michael the Archangel Regional School | PreK-8 | 164 | 6 |
| Erial Community Church Christian School | PreK-8 | 86 | 6 |
| Cornerstone Montessori School | PreK-4 | 12 | 8 |
| Hollydell School | PreK-12 | 49 | 8 |
| The Archway School | Ungraded | 262 | 9 |
| Ambassador Christian Academy | K-8 | 103 | 9 |
Private schools
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