Waukesha Catholic - St. Mary Campus

Waukesha Catholic is a three campus school supported by the four Catholic churches of Waukesha.
Waukesha Catholic offers classes for 4 year old kindergarten, 5 year old kindergarten, and grades 1-8.

Quick Facts (2025-26)

  • Top Ranked WI School
  • Grades: Prekindergarten-5
  • Enrollment: 272 students
  • Average class size: 26 students
  • Application Deadline: None / Rolling
  • Source: National Center for Education Statistics (NCES)

Top Rankings

Waukesha Catholic - St. Mary Campus ranks among the top 20% of private schools in Wisconsin for:

Category
Attribute

School Overview

School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades Prekindergarten-5
School Calendar
Last Day of School
Mon. May 25, 2026

Student Body

Total Students
272 students
Student Body Type
Co-ed
% Students of Color
5%
State avg.: 35%
Students by Grade
Waukesha Catholic - St. Mary Campus Student By Grade

Academics and Faculty

Total Classroom Teachers
13 teachers
Student-Teacher Ratio
21:1
National avg.: 13:1
Average Class Size
26 students

Tuition and Acceptance Rate

Admission Deadline
None / Rolling
Application URL

Extracurriculars

Total ExtracurricularsTotal Extra-curric.
2 extracurriculars
ExtracurricularsExtra-curric.
Boy ScoutsGirl Scouts

School Notes

  • St. Mary's is one of the elementary campuses of Waukesha Catholic. Waukesha Catholic develops well educated, caring and confident individuals who lead Christ-centered lives and are inspired to build a better world. We foster the spiritual, emotional, intellectual, social and physical development of our children, while recognizing each one's uniqueness. Our curriculum includes: Religion, Language Arts, Math, Science, Social Studies, Spanish, Art, Music, Physical Education, and Technology. Band is also available for grade 5. Before and After School Care is available before school and after school each day school is in session. Wrap around care is available in the afternoon for K4 students. Waukesha Catholic was recently awarded Exemplary Status in the area of Innovative programs by the Archdiocese of Milwaukee for their Cafe Create fine arts program.
Source: National Center for Education Statistics (NCES)

Frequently Asked Questions

What schools are Waukesha Catholic - St. Mary Campus often compared to?
Waukesha Catholic - St. Mary Campus is often viewed alongside schools like Corpus Christi Parish School by visitors of our site.
What is Waukesha Catholic - St. Mary Campus's ranking?
Waukesha Catholic - St. Mary Campus ranks among the top 20% of private schools in Wisconsin for: Largest student body.
When is the application deadline for Waukesha Catholic - St. Mary Campus?
The application deadline for Waukesha Catholic - St. Mary Campus is rolling (applications are reviewed as they are received year-round).

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Quick Facts (2025-26)

  • Top Ranked WI School
  • Grades: Prekindergarten-5
  • Enrollment: 272 students
  • Average class size: 26 students
  • Application Deadline: None / Rolling
  • Source: National Center for Education Statistics (NCES)

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Did You Know?

The average private school tuition in Waukesha County, WI is $9,045 for elementary schools and $18,064 for high schools (read more about average private school tuition across the country).
The average acceptance rate in Waukesha County, WI is 93% (read more about average acceptance rates across the country).

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