St. Mary S School
Diocesan school · Grades Pre-K–5
Ballston Spa, NY
40 Thompson St, Ballston Spa, NY 12020
Overall grade: B+
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- AClass size
- B+Years serving families
- BDiversity
What stands out
- Smaller classes than 72% of Catholic schools in New York
- Growing: enrollment up 23% since 2011–12
- Serving families in Ballston Spa since at least 2011
In Ballston Spa, New York, St. Mary S School is a Catholic diocesan school for students from pre-K through 5th grade. About 172 students attend, with roughly 9 students per teacher, smaller classes than 72% of Catholic elementary schools in New York. Enrollment is up about 23% since 2011–12. The school is part of the Diocese of Albany. The school day runs about 6 hours, 180 days a year.
At a glance
- Grades
- Grades Pre-K–5
- Students
- 172
- Teachers
- 18.3 (full-time equivalent)
- Students per teacher
- 9.4
- Boys and girls
- Coed · 67 girls, 105 boys
- Religious affiliation
- Catholic · Diocesan school
- Diocese
- Diocese of Albany
- School day
- About 6 hours
- School year
- 180 days
- Library
- Yes
Reviews
Be the first to share what you love about St. Mary S School.
How it compares
- Smaller classes than 72% of Catholic elementary schools in New York (9 students per teacher).
- Larger than 52% 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. Mary S School
What grades does St. Mary S School serve?
St. Mary S School serves grades Pre-K–5.
How many students attend St. Mary S School?
About 172 students, with 9 students per teacher, according to official records.
How much is tuition at St. Mary S School?
Call the school to ask about tuition, financial aid and payment plans.
Official record · Updated October 2026 · Official search · Something wrong? Tell us
Other private schools nearby
Malta Montessori
Montessori school · Grades Pre-K–3
Smaller classes than 91% of Montessori schools in New York
Malta, NY3.7 mi
Saratoga Central Catholic High School
Diocesan school · Grades 6–12
85% of graduates go to four-year colleges
Saratoga Springs, NY5.8 mi
Waldorf School of Saratoga SPR
Independent school · Grades Pre-K–7
Small classes: about 7 students per teacher
Saratoga Springs, NY6.6 mi
St. Clements Regional Catholic School
Diocesan school · Grades Pre-K–5
Smaller classes than 76% of Catholic schools in New York
Saratoga Springs, NY6.9 mi
Ketchum-Grande School of the Charlton School.
Special education school · Grades 8–12
Small classes: about 4 students per teacher
Burnt Hills, NY7.5 mi
Saratoga Independent School
Independent school · Grades Pre-K–8
Smaller classes than 67% of independent schools in New York
Saratoga Springs, NY8.9 mi