St. Agnes School
Diocesan school · Grades Pre-K–8
Arlington, MA
39 Medford St, Arlington, MA 02474
Overall grade: A+
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- A-Class size
- A-Years serving families
- A-Diversity
What stands out
- Smaller classes than 64% of Catholic schools in Massachusetts
- Serving families in Arlington since at least 2011
In Arlington, Massachusetts, St. Agnes School is a Catholic diocesan school for students from pre-K through 8th grade. About 291 students attend, with roughly 10 students per teacher, smaller classes than 64% of Catholic elementary schools in Massachusetts. Its enrollment has held steady since 2011–12. The school is part of the Archdiocese of Boston. The school day runs about 6.5 hours, 170 days a year.
At a glance
- Grades
- Grades Pre-K–8
- Students
- 291
- Teachers
- 28.4 (full-time equivalent)
- Students per teacher
- 10.2
- Boys and girls
- Coed · 151 girls, 140 boys
- Religious affiliation
- Catholic · Diocesan school
- Diocese
- Archdiocese of Boston
- School day
- About 6.5 hours
- School year
- 170 days
Reviews
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How it compares
- Smaller classes than 64% of Catholic elementary schools in Massachusetts (10 students per teacher).
- Larger than 82% of Catholic elementary schools in Massachusetts.
- Compared with 97 Catholic elementary schools in Massachusetts.
Students by survey year
Total students reported in official records since 2011–12.
Students by grade
Student body
Member of
- National Catholic Educational Association
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. Agnes School
What grades does St. Agnes School serve?
St. Agnes School serves grades Pre-K–8.
How many students attend St. Agnes School?
About 291 students, with 10 students per teacher, according to official records.
How much is tuition at St. Agnes 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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