Admission Inquiry 
Contact us 
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
EXTRACURRICULAR CLUBS
Clubs meet from 3:30-4:30 PM and are held in two sessions:
3D Printing & Coding
Amazing Aspiring Artists
Bucket Drumming
Caligraphy
Chess
Flag Football
Construction/LEGO Club
Paint By Number
Sign Language
Soccer
Strategic Games
Volleyball
Walking Club
Watercolor Painting
Why St. John XXIII Catholic School?
Check us out on Facebook!
It’s a perfect day for our Annual Flower Sale! 🌸 Stop by and see us — our amazing volunteers are excited to help make your gardens beautiful. Thank you to everyone who gave their time and energy to make this event possible (especially Mrs. Ewig & Mrs. Zirbes for their countless hours in ...bringing this weekend to life)!
*As a reminder: All pre-orders must be picked up today (3:00-7:00 PM). Extra flowers will be available today (3:00 PM) and tomorrow (8:00 AM 12:00 PM), on a first-come, first-served basis.
Special Key Event Winners 🚨 Thank you @ozaukeecountysheriff for making their morning & supporting our school!
Thank you to all of our families and special guests for joining us for our Early Childhood Program’s Lunch with Loved Ones event! What a special afternoon spent getting to know one another, meeting new faces, putting names to faces, and watching our students proudly show you off. ❤️
...After so many gloomy days, the beautiful weather finally cooperated — and the smiles on the kids’ faces said it all. They were so happy you were here. Thank you for making the day so meaningful and memorable for our little learners!
There’s just something about Port Washington … the lake views, the small-town charm, the welcoming community — it truly feels like a Hallmark movie come to life. ❤️ https://youtu.be/N2oVAdVoWDg
Watching this video reminded us how lucky we are to call this community home. From the... historic downtown and waterfront to the people who make this city so special, Port Washington is more than just a beautiful place to live — it’s an incredible place for children to learn.
At SJ23, we’re proud to be part of a town where community matters, relationships are valued, and families are supported every step of the way. The same warmth and heart that make Port Washington such a special destination are the very things that make our school feel like home — a place where students are known, cared for, encouraged, and inspired each day. If you take a close look during the aerial views near Allen Edmonds, you might even spot our SJ23 campus — and beautiful St. Mary’s Church — nestled right in the heart of this amazing community. 💙
Looking for a school that feels like home in a hometown that feels the same? We’d love to connect with you. Learn more about SJ23 and contact us today:
https://stjohn23rd.school/
#DiscoverPortWashington #SJ23 #SmallTownCharm #PortWashingtonWI #CatholicEducation
New Episodes drop every ThursdayOn Air Thursdays at 7:00pm on @pbswisconsin and @milwaukeepbsCheck your local #PBS listings to find out where it airs...
youtu.be