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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.
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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?
Check us out on Facebook!
CUTENESS OVERLOAD! 👻 Our hallways were bursting with tiny superheroes, princesses, spooky friends, and all kinds of adorable costumes during our Early Childhood Costume Parade this morning! Our older students brought the cheers and big smiles as they welcomed our littlest learners along the Read moreparade route. And the sweet finale? A special bag of treats for everyone! What a fun morning full of Halloween magic! 🎃
Wishing our 8th Graders GOOD LUCK tonight at the Seton Tournament! #PHOENIXSTRONG
Alright…we need your help! Give a “like” to your favorite pumpkin and help us determine the winner for our decorating contest!
3rd Grade had a very special visitor! Andrew Gibson from the Milwaukee Admirals stopped by to visit his sister, Ms. G, and spend time with her students. Thank you, Andrew, for taking the time to visit! GO ADS! 🏒
