We are a welcoming and reconciling openness to all people, celebrating the diversity of our urban neighborhood; We are witnessing to a contemporary understanding and practice of the Churchs teaching, in the light of the Second Vatican Council; We are living out our call to discipleship by offering sacramental life, service, teaching, and healing to all Gods people, which will, at times, involve a cost to ourselves; We are nurturing in our lives a deeper spiritual relationship with the Lord.
Quick Stats (2025)
- Top Ranked WI School
- Grades: Prekindergarten-8
- Enrollment: 336 students
- Average class size: 19 students
- Application Deadline: None / Rolling
- Source: National Center for Education Statistics (NCES)
Top Rankings
St. Sebastian School ranks among the top 20% of private schools in Wisconsin for:
School Overview
School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades Prekindergarten-8
Year Founded
1909
Summer School Offered
Yes
Student Body
Total Students
336 students
Student Body Type
Co-ed
% Students of Color
46%
State avg.: 35%
Students by Grade

Academics and Faculty
Total Classroom Teachers
23 teachers
Student : Teacher Ratio
15:1
National avg.: 13:1
Average Class Size
19 students
Tuition and Acceptance Rate
Admission Deadline
None / Rolling
Sports
Total Sports Offered
2 sports
Sports
Extracurriculars
Total ExtracurricularsTotal Extra-curric.
14 extracurriculars
ExtracurricularsExtra-curric.
All-School Mass Student Choir, Band and Guitar Lessons, Character Education Program (NCEA Award Winner), Chess Club, Girl Scouts/Boy Scouts, Lunch Bunch Lunchtime Electives Program, Math Contests and Academic Competition Teams, Middle School Choir, Middle School Forensics Team (2008 State Champions), Readers are Leaders, Spanish and Intramural Sports electives for middle school, SS Reader Student Literary Publication, Student Government, Theater Program/School Plays
Source: National Center for Education Statistics (NCES)
Frequently Asked Questions
What sports does St. Sebastian School offer?
St. Sebastian School offers 2 interscholastic sports: Basketball and Volleyball.
What is St. Sebastian School's ranking?
St. Sebastian School ranks among the top 20% of private schools in Wisconsin for: Largest student body and Most extracurriculars offered.
When is the application deadline for St. Sebastian School?
The application deadline for St. Sebastian School is rolling (applications are reviewed as they are received year-round).
In what neighborhood is St. Sebastian School located?
St. Sebastian School is located in the Washington Heights neighborhood of Milwaukee, WI. There are 4 other private schools located in Washington Heights.
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