Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

School Calendar

View School Calendar

Student Body

Total Students

563 students

Student Body Type

Co-ed

% Students of Color

State avg.: 27%

Academics & Faculty

Total Classroom Teachers

25 teachers

Student-Teacher Ratio

23:1

National avg.: 11:1

Average Class Size

25 students

Tuition & Acceptance Rate

Admission Deadline

None / Rolling

School Notes

St. Louise de Marillac School offers a tradition of Gospel values, academic excellence and service to others.
Each child is cherished and nurtured to reach his/her fullest potential.

Great Beginnings Last A Lifetime!

Source: Verified school update

REQUEST FREE INFORMATION

Frequently Asked Questions

What schools are St. Louise De Marillac School often compared to?

St. Louise De Marillac School is often viewed alongside schools like Ave Maria Academy - Bethel Campus by visitors of our site.

What is St. Louise De Marillac School's ranking?

St. Louise De Marillac School ranks among the top 20% of private schools in Pennsylvania for: Largest student body.

When is the application deadline for St. Louise De Marillac School?

The application deadline for St. Louise De Marillac School is rolling (applications are reviewed as they are received year-round).

School Reviews

Endorse St. Louise De Marillac School. Endorsements should be a few sentences in length. Please include any comments on:

Quality of academic programs, teachers, and facilities
Availability of music, art, sports and other extracurricular activities
Academic or athletic awards

Recent Articles

September 01, 2026

How Much Homework Is Too Much?

Learn how to compare private school homework expectations, recognize excessive workloads, evaluate assignment quality, and ask better questions about academic balance before choosing a school for your child.

September 01, 2026

Learning Support Without a Formal Program

Learn what private schools mean by informal learning support, how services differ from formal programs, and which questions families should ask before choosing the right school today.

September 01, 2026

Beyond AP vs. IB: How to Judge Academic Rigor

Learn how to judge academic rigor at private schools without AP or IB by examining curriculum depth, assessments, faculty expectations, advanced coursework, student work, and college preparation outcomes.

Request Info

Email:

Name of parent:

Student first name:

Student last name:

Student date of birth:

Student is:

Male

Female

Currently in grade:

Seeking entry for grade:

Target start date:

Please briefly describe academic, athletic, and extracurricular interests of the student:

Home address:

City:

Country:

State:

Zip: (enter "N/A" if not applicable)

Phone:

Save this data and create your user profile. Create your own user account so you don't have to re-type your user data each time you request information. You'll also be able to track your information requests, get reminded of application dates, and more!

Username:

Password:

Did You Know?

The average private school tuition in Pittsburgh, PA is $13,280 for elementary schools and $18,184 for high schools (read more about average private school tuition across the country).

The average acceptance rate in Pittsburgh, PA is 68% (read more about average acceptance rates across the country).