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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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We extend our heartfelt thanks to all of our 2026 Key Event Sponsors for their generosity, partnership, and unwavering support. Your contributions play a vital role in the success of this event and directly impact our community. We are truly grateful for your commitment and belief in our mission. ...Thank you for helping make this year’s Key Event possible. WE WILL SEE YOU TOMORROW NIGHT ON THE RED CARPET!
2026 Key Event Sponsors (Alphabetical Order):
Advanced Restoration | The Dimmer Family
Align Chiropractic
Ansay & Associates, LLC
Antoine, Hoeft & Eberhardt, S.C.
Aspen Medical Aesthetics & Laser Clinic
Baird
CG Schmidt
Charlie & Julie Pfrang
Chimney Concepts
Drew's True Value
Eernisse Funeral Homes
Eric Von Schledorn
Insight Investment Advisers
Jeff & Angel Schmit
Jiffy Overhead Door
Knights of Columbus
Pear & Simple
Port Washington State Bank
Port Washington-Saukville Rotary Club
RE/MAX United | The Didier Families
Renaissance Charitable
Robert F. Henkle Jr.
Sharbuno Jewelers
Sharon-Cutwell
Shirli Flack
Sound By Design
St. John XXIII Catholic Parish
The Becker Family
The Cline Family
The Cook Family
The Gruenwald Family
The Hubacek Family
The Joyce Family
The Karasch Family
The Kitzinger Family
The Lackovic Family
The Lippe Family
The Lichtensteiger Family
The Lundgren Family
The Sereno Family | CPR
XCEL Tooling, Inc.
Congratulations to our Mission Award Recipients! 🌟
We are so proud of the many students who were recognized this morning — it may even be a record number of honorees! Each student highlighted truly represents our mission through their kindness, leadership, responsibility, and positive... example.
Keep up the incredible work — you make our school community stronger every single day!
We were honored to welcome a parish member from our Human Concerns Committee into our school to work alongside our students on a meaningful service project.
Together, they began to create Mercy Mats for Mr. Bob's Under the Bridge, using recycled plastic bags that will be crocheted ...into sleeping mats for those in need. This hands-on experience helped our students learn the power of compassion, service, and caring for others.
Mr. Bob’s Under the Bridge fosters a community of compassion and friendship by providing basic necessities—such as clothing and hygiene products—to individuals experiencing homelessness in Milwaukee and the surrounding communities. What began in 2007 with just six backpacks and open hearts, founded by Bob and Sue Burmeister, has grown into a 501(c)(3) nonprofit serving countless individuals with dignity and care.
We are proud of our students and grateful to work alongside our Parish to support such an inspiring mission.
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!