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.

LEARN MORE ABOUT ST. JOHN XXIII CATHOLIC SCHOOL >>

St. John XXIII Catholic School received Exemplary Recognition

Upcoming Events

SEE FULL CALENDAR
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)
St. John XXIII Catholic School received Exemplary Recognition

HIGH HONORS!

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

More >
Schedule a Tour at St. John XXIII Catholic School

Why We Love Our School

Take a look at this interactive booklet and learn more about SJ23. We are now enrolling for the upcoming school year and are offering a Welcome Scholarship (15% discount) to all new families!

View SJ23 Booklet >
honor roll of donors

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.

Meet Our Donors >