St. John XXIII Catholic School (SJ23) provides a foundation of Catholic values and academic excellence for its students in preschool through 8th grade. Our faculty and staff is dedicated to building a strong academic, social, emotional, and spiritual foundation for our students.

Quick Stats (2022)

  • Top Ranked WI School
  • Grades: Prekindergarten-8
  • Students: 198 students
  • Yearly Tuition: $3,549
  • Average class size: 15 students
  • Application Deadline: None / Rolling

Top Rankings

St. John XXIII Catholic School ranks among the top 20% of private schools in Wisconsin for:

School History

School Overview

Religious Affiliation
Grades Offered
Grades Prekindergarten-8
ADD/ADHD Support
Learning Difference Programs
Year Founded

Student Body

Total Students
198 students
Student Body Type
% Students of Color
State avg.: 31%
Students by Grade
St. John XXIII Catholic School Student By Grade

Academics and Faculty

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

Tuition and Acceptance Rate

Admission Deadline
None / Rolling
Yearly Tuition Cost
Tuition Notes
Tuition is pro-rated for multiple students enrolled. Tuition Assistance is available.
% on Financial Aid
Admissions Director
Julie Pannemann


Total Sports Offered
2 sports


Total ExtracurricularsTotal Extra-curric.
9 extracurriculars
Club or Organization:
Boy & Girl Scouts, Lego Club, Spanish Club

Arts and Music Programs:
5th Grade Band, 6th - 8th Grade Concert Band, Choir, Jazz Band

Recreational Athletic Programs:
5th - 8th Grade Girls' & Boys' Basketball, 5th - 8th Grade Girls' & Boys' Volleyball

School Notes

  • St. John XXIII Catholic school is a destination to serve, love, learn, and lead as disciples of Christ. Our commitment to academic excellence, service, discipleship and community promotes student success. Every child is nurtured, challenged and known as an individual.
  • Our curriculum includes Reading, Math (including Pre-Algebra & Algebra), Language Arts, Science, Social Studies, Religion, Technology, Physical Education, Art, and Music. Spanish is offered to students in K-8th grades. Beginning Band, Concert Band, Jazz Band, & Guitar are are avaialble to student in grades 5 - 8.
  • STEAM concepts (Science, Technology, Engineering, Art, & Math) are integrated throughout our curriculum.In addition to the regular curriculum, middle-school students have the opportunity of choosing two additional electives in the areas of fine arts, STEAM/Makerspace, or extended learning/enrichment help. Fine arts electives include mallet madness/world drumming, music technology/video creation, and theater/drama.
  • Through the application of appropriate educational research, our fully certified staff strives to create an integrated subject approach. Additionally, we employ a standardized testing program to constantly evaluate and improve our course offerings.
  • Instructor/Student Ratio: The average class size at SJ23 is 16 students. The  instructional faculty to student ratio is 1:11.
  • Technology at SJ23 enhances traditional and hands-on teaching methods to further our students` educational journey both in and outside the classroom. Students use ipads, MacBooks, laptops and chromebooks in the STEAM labs and classrooms to accomplish curricula goals and become respectful, knowledgeable digital citizens.
  • Our STEAM lab is a student-centered environment dedicated to a deeper understanding of real-world concepts and their relationship to each other. The STEAM concept explores Science and Technology, through Engineering and the Arts, all based in Mathematical elements. This hands-on, inquiry approach encourages our K - 8th grade students to investigate and solve real-world problems by incorporating language, fine arts, and music in addition to traditional STEM curriculum.
  • Student Support at SJ23 means we support students` individual learning needs and help them reach their highest potential by providing one-on-one and small-group student enrichment. In grades five to eight we have regularly scheduled FLEX time for intervention, project time, reteaching, acceleration, and enrichment. We nurture our students` emotional and social growth weekly through individual or group counseling opportunities that focus on relationships, adolescent challenges, healthy minds and bodies, as well as other topics that promote positive social and emotional growth.
  • Service, Discipleship, & Communityis what we are about. All students in K - 8th grade participate in weekly Mass or prayer services and numerous service projects throughout the year. At the Upper Campus, students also participate in retreats, work in the the St. Peter`s Food Pantry, serve at St. Ben`s, and serve in many other areas of our local and global communities.Middle-school students are required to fulfill a fixed number of service hours each year. 
Profile last updated: 05/11/2022

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Quick Stats (2022)

  • Top Ranked WI School
  • Grades: Prekindergarten-8
  • Students: 198 students
  • Yearly Tuition: $3,549
  • Average class size: 15 students
  • Application Deadline: None / Rolling

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Did You Know?

The average private school tuition in Ozaukee County, WI is $3,761 for elementary schools (read more about average private school tuition across the country).

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