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WELCOME TO
OUR SCHOOL
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 are dedicated to building a strong academic, social, emotional, and spiritual foundation for our students.
Learn More About Our Community
“I am beyond grateful for what St. John XXIII and the entire staff has done for my family. My kids would not be in the places they are if it weren’t for the dedication and love of the teachers and staff. THANK YOU ALL.”
– Current Parent
WE ARE EXCITED TO MEET YOUR FAMILY
Choosing the right educational option for your child is one of the most important decisions you will make. It’s important that your child’s school is an educational partner with like-minded values and goals, dedicated to helping your child reach his or her social, emotional, intellectual, physical, and spiritual potential. If you are interested in becoming part of our school community, we welcome you to contact us today!
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2026-2027 EXTRACURRICULAR CLUBS
Clubs meet from 3:30-4:30 PM and are held in two sessions:
Dance Club
Piano Club
Coloring & Paint-By-Number
Magic School (AI & Creativity) Club
Construction (LEGO) Club
Early Childhood Building Club
Introduction to 3D Printing
Wild Card Club
Board Games
Sign Language
Sole Mates | Walking Club
Why St. John XXIII Catholic School?
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Family members, neighbors, friends & grandparents… WE NEED YOU!
Pledge a student TO WALK at this year’s Catholic Schools Walk! Our goal is to raise $6,000—that’s just $25 per student at SJ23! Every pledge brings us one step closer to reaching our goal and supporting our students andRead more school community.
Get started today! Join our team and PLEDGE NOW: https://stjohn23rd.ccbchurch.com/goto/forms/415/responses/new
SJ23 Families - Dance with Impact Performing Arts Center!
Try a class at Impact and discover the perfect fit for your child. Enroll in the next
season and a portion of your registration will be donated right back to our school.
Whether you are new to the IMPACT family or not, Read more✨THE WORLD NEEDS YOUR MAGIC✨
Click Here to get started: https://docs.google.com/forms/d/e/1FAIpQLSfx7gA3PzDuZw7rwXxE4OwDsMJ3Gw-D1MOB1CiMGC1vI8UCcQ/viewform
Harvested and ready for The Food Pantry!
When our students leave St. John XXIII Catholic School, they are prepared for what comes next—academically, socially, emotionally, and spiritually. Our 2025–2026 Wisconsin Forward State Exam results provide one measure of the strong academic foundation our students receive. We are especially Read moreproud of our 8th grade students:
• ELA: 85% Advanced or Meeting/Proficient
• Math: 92% Advanced or Meeting/Proficient
• Science: 93% Advanced or Meeting/Proficient
• Social Studies: 92% Advanced or Meeting/Proficient
These results reflect the dedication of our students, the commitment of our teachers, and the support of our families. We are proud to see our students leaving SJ23 confident, capable, and ready for their next chapter.
*Data: 2025–2026 Wisconsin Forward State Exam Results | wisedash.dpi.wi.gov