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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.
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“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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🎉 WELCOME BACK, SJ23! 🎉
The halls are ready. The classrooms are ready. Our teachers are READY… and now we’re just waiting for YOU!
After a summer full of adventures, sunshine, camps, vacations, late nights and maybe a little too much screen time, it’s finally time to Read moreget BACK TOGETHER!
We can’t wait to see our students walk through those doors, reconnect with friends, meet their teachers, make new memories and fill our school with the energy and joy that only our students can bring.
Here’s to a brand-new school year filled with learning, laughter, friendship, faith and plenty of reasons to celebrate!
Welcome back, students! We’ve missed you! Let’s make this our BEST YEAR YET!
Back to School Night is TODAY! We can’t wait to welcome our families! Come meet your teachers, see your classrooms, reconnect with friends, and get ready for an amazing school year.
What a wonderful way to start the day. Vases printed over the summer with our 3D printer, filled with beautiful flowers from his garden. Such a thoughtful gift and the perfect reminder of the creativity, kindness, wonderful people, and little moments that make this place so special. As we begin a Read morenew school year, we are feeling especially grateful and excited for all that is ahead. New beginnings, new memories, and another year of growing, learning, and doing it all together. We can’t wait!
We’re excited to announce that we are renewing our Milwaukee County Zoo membership for another year! This means our families will once again have the opportunity to enjoy a day at the Zoo together. We have TWO Zoo Passes available to reserve through the School Office. Passes are available on a Read morefirst-come, first-served basis and may be checked out for up to two days at a time.
🎟️ Each pass includes:
• 5 Zoo admission tickets + parking
• 10% off at the Gift Shop
• Discounts on Expeditions
• Discounts on the Sky Adventure Ropes Course
To check availability or reserve a pass, please contact the School Office.
We want to see your Zoo adventures! A photo album will be created at the end of the school year. Send your favorite Zoo photos to Mrs. Brewster!
We’ve been meeting, planning, organizing, meeting, cleaning, prepping, meeting, dreaming, rocking, rolling and meeting even more behind the scenes—and we can officially say it… we are READY for YOU! Are YOU ready? One more week! Get those final Summer Bucket List items checked off, enjoy Read morethese last few days, and start packing those backpacks!