St. Thomas the Apostle School
Parish school · Grades Pre-K–8
Delmar, NY
42 Adams Pl, Delmar, NY 12054
Overall grade: A
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- A-Class size
- A-Years serving families
- B+Diversity
What stands out
- Serving families in Delmar since at least 2011
St. Thomas the Apostle School is a Catholic parish school in Delmar, New York, for students from pre-K through 8th grade. It has about 142 students and around 11 students per teacher. It has been listed in official private school records since 2011–12. The school is part of the Diocese of Albany. Students attend about 5.5 hours a day, 180 days a year.
At a glance
- Grades
- Grades Pre-K–8
- Students
- 142
- Teachers
- 12.9 (full-time equivalent)
- Students per teacher
- 11
- Boys and girls
- Coed · 90 girls, 52 boys
- Religious affiliation
- Catholic · Parish school
- Diocese
- Diocese of Albany
- School day
- About 5.5 hours
- School year
- 180 days
- Library
- Yes
Reviews
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How it compares
- Smaller classes than 58% of Catholic elementary schools in New York (11 students per teacher).
- A smaller school: fewer students than 63% of Catholic elementary schools in New York.
- Compared with 242 Catholic elementary schools in New York.
Students by survey year
Total students reported in official records since 2011–12.
Students by grade
Student body
Questions to ask on a tour
- What is tuition, and what does it include (books, fees, uniforms, trips)?
- Do you offer financial aid, sibling discounts or payment plans?
- Do you accept ESA, voucher or tax-credit scholarship funds?
- How big are classes in my child's grade?
- What support is there for students who need extra help or more challenge?
- Is the school accredited, and by whom?
- What do a typical day and a typical week look like?
- How does the school communicate with families?
Questions about St. Thomas the Apostle School
What grades does St. Thomas the Apostle School serve?
St. Thomas the Apostle School serves grades Pre-K–8.
How many students attend St. Thomas the Apostle School?
About 142 students, with 11 students per teacher, according to official records.
How much is tuition at St. Thomas the Apostle School?
Call the school to ask about tuition, financial aid and payment plans.
Official record · Updated October 2026 · Official search · Something wrong? Tell us
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