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WELCOME TO
St. John XXIII Catholic 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 Catholic School 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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EXTRACURRICULAR CLUBS
Clubs meet from 3:30-4:30 PM and are held in two sessions:
3D Printing & Coding
Amazing Aspiring Artists
Bucket Drumming
Chess
Flag Football
LEGO Club
Sign Language
Soccer
Strategic Games
Volleyball
Watercolor Painting
Why St. John XXIII Catholic School?
Check us out on Facebook!
SJ23 Cheer Squad 🎉Thank You to Impact Dance for making it possible this year! ♥️
End of the Year Picnic thanks to PTO Parents! BEAUTIFUL DAY for it! ♥️☀️
WE ARE PROUD AND EXCITED TO SHARE THIS WONDERFUL NEWS: St. John XXIII Catholic School has been awarded the Archdiocese of Milwaukee Exemplary Recognition in Whole Student Education!
This prestigious designation, valid for five years, honors our commitment to nurturing the whole ...child—spiritually, academically, emotionally, and socially—rooted in our Catholic values and pursuit of excellence. We are deeply proud of our faculty, staff, students, and families whose dedication and partnership make this recognition possible. This honor affirms that the work happening every day at St. John XXIII reflects the highest standards of Catholic education. An official award presentation will take place this fall—details to come! Congratulations to our entire school community! Let us continue to live our mission and let our light shine!
What a great way to end out this school year...
Wishing You a Safe & Restful Summer!
💖Your SJ23 Faculty & Staff
✏️💙🚌 HELLO KINDERGARTEN! 🖍️♥️📒
A Puppet Show in 2nd Grade today...with some happy siblings 💖
Welcome to GLOW MATH DAY with Ms. Rieck!