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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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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?
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Phoenix Feather Winners for February 🌟 Congratulations! Keep up the great work!
At St. John XXIII Catholic School, we take pride in bringing together the right people—individuals who are not only talented and dedicated but also committed to fostering a culture of faith, learning, and community. Each year at The Key Event, we recognize and honor faculty and staff who go above... and beyond, making a lasting impact on our students and school family. These exceptional individuals inspire, guide, and support our students in countless ways, and their dedication ensures that SJ23 continues to be a place where every child can succeed.
For 2026, we are thrilled to honor the following outstanding members of our SJ23 community:
✨ Mrs. Cindy Gibson – The Creative Visionary
✨ Mrs. Laura Gallitz – The Faithful Guide
✨ Mrs. Seneca Graykowski – The Heart of the Office
Thank you for the countless ways you inspire our students and strengthen our school each day. We are so grateful for you!
Get Ready to Raise Your Paddle! Our Live Auction is packed with can’t-miss experiences and unforgettable fun — there’s truly something for everyone! Take a peek, start dreaming, and tell us… which one are you bidding on (or stealing if you win the Golden Ticket)?!
⛳ Kohler Golf ...Package
🧺 Luxury Picnic Experience
🏕️ Camping in the Kettles Weekend at Mauthe Lake
🌅 Sunset Cruise on Lake Michigan
🎉 Party Package at the Engine Room
🍕 Marzano Pizza Company Experience & Pizzero Pizza Oven
🌺 Hawaiian Luau
⚾ Front Row Milwaukee Brewers Game Experience
🎨 Kaylee Goodman Chalk Art — created LIVE at the event!
🏔️ Smoky Mountain Resort Vacation in the Great Smoky Mountains
⛳ Golf Simulator Party & Japanese Hibachi
Ready to see all the details and start planning your winning bid? Visit: https://keyevent2026.cbo.io
🌸 2026 Flower Sale — THINK SPRING! 🌸
Spring will be here before you know it, and our Annual Flower Sale is the perfect way to get ready! Our beautiful flowers come from Caan's Floral, and pricing is exactly what you’d pay shopping directly with them — tax free! Even ...better, when you purchase through our school fundraiser, a portion of every sale supports our school.
🌸Public Flower Sale Dates: May 15 | 3:00–7:00 PM | May 16 | 8:00 AM–12:00 PM
🌸Presale Orders: Catalogs come home with students and will be available to the public beginning the week of March 16th. Presale orders are due April 10th. *All presale orders must be picked up on May 15 (3–7 PM). Delivery is available if needed!
🌸Volunteer Opportunities: https://sj23.ivolunteer.com/flowersale
Amazing/New items are STILL being added to our Silent Auction! Check it out today & keep those bids coming! https://keyevent2026.cbo.io
A magical evening Under the Stars! 🌟
Thank you to all of the dads and loved ones for joining us for such a special night. And a huge thank you to Stacey Cline for putting together such a fun and unforgettable Father-Daughter Dance! 💫