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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!
Quick links to help you
STAY CONNECTED
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!
Our National Beta Club received the 2025-2026 School of Merit Award!
Looking for a meaningful way to make a difference? Come join the St. John XXIII Catholic School family as a substitute teacher! Whether you’re looking for occasional work or simply want to give back to your community, substitute teaching is a wonderful way to support our students, teachers, and ...mission.
To become a substitute, you’ll need to:
✅ Hold a bachelor’s degree (in any field—an education degree is a plus!)
✅ Complete the Archdiocese of Milwaukee employment application:
https://www.archmil.org/Resources/Application-for-Employment-Teachers-Principals.htm
✅ Complete Safe Environment requirements, including the background check, Code of Ethics, and Social Media & Digital Communication Policy:
https://cmgconnect.org/
Once these steps are complete, we’ll invite you to visit our school and meet with our Principal. We’d love to welcome you into our school community! If you’ve ever considered working with children in a faith-filled environment, this is a great opportunity. Please share this post with friends or family who may be interested!
Summer Family Service Challenge: Go Make a Difference This Summer!
Making a difference doesn't always require grand gestures. Sometimes the greatest impact comes through simple acts of love and service. This week, choose one act of service to do as a family:
✅ Write a ...thank-you note
✅ Help a neighbor
✅ Donate food or clothing
✅ Pick up litter in your community
✅ Pray for someone in need
✅ Visit a grandparent or elderly friend
When we serve others through love, we become the difference our world needs.
Share in the comments how your family is making a difference this summer!
Today is "World Emoji Day"...so let's give something a try to celebrate: What's the best part of summer break? Comment below!
☀️ Sleeping in
🏊 Swimming
🍉 Cookouts
📚 Reading
✈️ Vacation
⚾ Summer sports
👨👩👧👦 ...Family time
Choose one—or add your own!
Uniform Reminder: Back-to-school preparation starts now!
As you begin getting ready for the new school year, don't forget to check uniforms for:
✔️ Proper fit
✔️ Approved styles & colors
✔️ Dress code compliance
✔️ School spirit wear options: ...https://teamlocker.squadlocker.com/stores/sj23-spirit-wear-store#/lockers/sj23-spirit-wear-store
A little preparation now helps ensure a smooth start on the first day of school! Questions about uniforms? Visit: https://stjohn23rd.school/uniform-program/
Contact the school office—we're happy to help!
🌟 Introducing Our 2026-2027 School Theme: GO MAKE A DIFFERENCE
At St. John XXIII Catholic School, we believe each person has been uniquely gifted by God to make a positive impact in the lives of others. This year, our students, staff, and families will be challenged to look beyond ...themselves and live out the words of Scripture: "Serve one another through love." — Galatians 5:13
Throughout the year, we will focus on making a difference through:
❤️ Acts of kindness
🤝 Service to others
✝️ Living our faith
🌎 Caring for our community
💡 Using our God-given gifts and talents
Every smile shared, every helping hand offered, every act of compassion shown, and every opportunity to serve is a chance to make a difference. We can't wait to see how our SJ23 community will answer this call and make an impact in our school, parish, and community this year.
Together, let's Go Make a Difference!