Building Foundations for a Lifetime

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.

SJ23’s teachers actively engage and inspire diverse learning styles so every student reaches his or her potential while at SJ23 and beyond. We are growing as saints together through service, excellence, discipleship, and community.

If you are wondering what it’s like to be a student here at SJ23, we welcome you to EXPLORE NOW through our 3D Virtual Tour! CLICK HERE to get started!

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St. John XXIII Catholic School received Exemplary Recognition

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This school shaped who I am today. It helped shape my personal set of morals and values, which guide my decision making today, and encourage me to make a difference in the world.
-Ben Schueller (former student)

HIGH HONORS

We are proud to receive Exemplary Recognition from the Archdiocese of Milwaukee for demonstrating innovation and outstanding results in Academic Excellence!

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EXPLORE SJ23 NOW

If you are wondering what it’s like to be a student here at SJ23, we welcome you to explore now through our 3D Virtual Tour! We are enrolling for 2021-22 and offering a Welcome Scholarship to new families!

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HONOR ROLL OF DONORS

View a list of St. John XXIII's amazing network of donors. Their generosity allows more than 200 students to receive an excellent education, which is grounded in faith.

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