Admission Inquiry 
Contact us 
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.
A Destination to Serve. Learn. Love. Lead.…as Disciples of Christ.
“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 explore now through our 3D Virtual Tour, or contact us to schedule an in-person tour or shadow day.
Quick links to help you
STAY CONNECTED
EXTRACURRICULAR CLUBS
Clubs evolve and change based on student interests and parent enthusiasm. For this school year, Clubs meet from 3:30-4:30 PM and will be held in two sessions.
2023-2024 Clubs Include:
Photography
Watercolor Painting
Construction Club
Yoga
Chess
Sign Language
Outdoor Neighborhood Games
Coding Club
Why St. John XXIII Catholic School?
Check us out on Facebook!
Are you looking for a fun and easy activity for your child(ren) this summer? Our Rock Garden needs some love! Paint a rock and bring it to the Back to School BBQ for an Out of Uniform Pass!
Here is what we have been up to this summer...
What have you and/or your family been doing?!
Post a picture below from your favorite memory (or memories) so far! ☀️
Mark your calendars, lace up your shoes, & spread the word as we get ready to walk!
The 12th Annual Catholic Schools Walk is a cherished event that unites 102 schools across 10 counties within the Archdiocese of Milwaukee. This year, The St. John XXIII Catholic School (SJ23) Walk will... take place on Friday, October 11th at Upper Lake Park, where students, families, parish members, pets, alumni, and community supporters are encouraged to join us as we celebrate Catholic education and the profound impact it has on our community. Your enthusiasm, energy, and passion for education are vital as we stride together for a brighter future at SJ23. Every dollar raised for this event will directly benefit our school, and thanks to the generosity of our event sponsors, the funds we raise are eligible for a proportional match, up to $5,000!
*Students and/or families should create their own pledge website! Have family members, neighbors, friends, & grandparents register to walk (or sponsor if they cannot attend in person)! Click the following link to join our team & create your very own fundraising page: https://fundraise.givesmart.com/vf/SCHOOLSWALK/team/StJohnXXIII
All families that raise $50 or more will be entered to win a $100 Amazon Gift Card (3 available)!
*Please Note: The road will be blocked off by the Port Washington Police Department for the safety of all walkers.
*Free picnic lunch at school to follow for all walk participants (provided by the Knights of Columbus)
*All are welcome & encouraged to join!
