St. Mary (Top Ranked Private School for 2026-27)

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About the School

Saint Mary's Hospital is a Yale-affiliated urban hospital located at 56 Franklin Street, Waterbury, Connecticut.
Operated by Trinity Health, it was founded in 1907 by the Sisters of Saint Joseph of Chambéry and is designated as a Level II trauma center.

Quick Facts (2026-27)

Top Ranked CT School
Grades: Prekindergarten-8
Enrollment: 253 students
Application Deadline: None / Rolling
Source: National Center for Education Statistics (NCES)

School Rankings

St. Mary ranks among the top 20% of private schools in Connecticut for:

School Facts

Religious Affiliation

Catholic

Grades Offered

Grades Prekindergarten-8

Students By Grade

View Data

Distribution of Students By Grade
Grade	St. Mary
Pre-K	17
Kind	12
1	17
2	10
3	14
4	17
5	54
6	39
7	26
8	47

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Year Founded

1907

Student Body

Total Students

253 students

Student Body Type

Co-ed

% Students of Color

66%

State avg.: 31%

Academic Profile

Total Classroom Teachers

15 teachers

Student-Teacher Ratio

17:1

National avg.: 11:1

School Membership(s)School Assoc.

National Catholic Educational Association (NCEA)
Other school association(s)

Tuition & Financial Aid

Admission Deadline

None / Rolling

Frequently Asked Questions

What schools are St. Mary often compared to?

St. Mary is often viewed alongside schools like Our Lady Of Mount Carmel School by visitors of our site.

What is St. Mary's ranking?

St. Mary ranks among the top 20% of private schools in Connecticut for: Highest percentage of students of color, Largest student body and Oldest founding date.

When is the application deadline for St. Mary?

The application deadline for St. Mary is rolling (applications are reviewed as they are received year-round).

School Reviews

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Did You Know?

The average private school tuition in New Haven County, CT is $19,109 for elementary schools and $29,229 for high schools (read more about average private school tuition across the country).

The average acceptance rate in New Haven County, CT is 73% (read more about average acceptance rates across the country).