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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?
Check us out on Facebook!
Who doesn’t love a celebration…or surprise?! 🎉
Throwback to when our 1st Graders surprised Ms. T during the last week of school with a special early wedding celebration. 💍❤️
Congratulations to Ms. T and her soon-to-be husband, Jamie, on their upcoming wedding! We are... so excited for you both and wish you a lifetime of love, happiness, and beautiful memories together. May your forever be filled with endless blessings and joy. 🥂✨
Sometimes unexpected changes create new beginnings...
One of our SJ23 families is relocating out of state, which means a rare opening has become available in our Pre-3 Program for the 2026–2027 school year (Monday, Wednesday, Friday)! We're excited to welcome another little learner into ...our school family! Give us a call at 262-284-2682 or visit https://stjohn23rd.school/early-childhood-program to learn more!
☀️ SJ23 Summer Light Challenge ☀️
This week's challenge is simple:
📚 Read for 20 minutes
💙 Perform a random act of kindness
🙏 Pray for someone
🌳 Spend time outside
🏡 Help with a household chore
How many can you complete this ...week?
We'd love to see our SJ23 students living out their faith and making a difference! Share a photo in the comments of your summer challenge adventures—whether you're reading on the porch, helping a neighbor, enjoying God's creation, or lending a hand at home. Together, let's continue to let our light shine all summer long! ✨
Summer Activity Alert!: Paint rocks to add to our Rock Garden! Bring in THREE of them to receive an Out of Uniform Pass in September 🎨
A huge thank you to all of the kids who joined us for Summer Soccer Camp! We were thrilled to have Milwaukee Wave player Ricardo Carvalho share his knowledge, passion, and talent with our young athletes.
With the World Cup capturing everyone’s attention, it was the perfect time for our ...campers to sharpen their skills, learn new techniques, and grow their love for the game. From drills and skill-building…to plenty of laughs and fun, it was a fantastic week on the field.
Thank you, Ricardo, for inspiring the next generation of soccer players, and thank you to all of our campers for bringing the energy every day. What a fun week!
Only 20 remain! Click here to purchase your picket today: https://stjohn23rd.ccbchurch.com/.../forms/397/responses/new