Discover the Difference of Catholic Education

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.

Learn more about our Catholic School 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 explore now through our 3D Virtual Tour, or contact us to schedule an in-person tour or shadow day.

LEARN MORE

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. Click Here for Session 1 Sign-Up

Session 1: October 30, November 13, December 11, January 15, February 12
Session 2: February 26, March 12, April 9 & 23, May 14

2024-2025 Clubs Include:
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?

Check us out on Facebook!

On behalf of SJ23, we sincerely thank our generous sponsors and donors for their support of our upcoming Silent/Live Auction. Your contribution is vital to the success of our upcoming event, and we are truly grateful for your partnership. Thanks to your generosity, we are able to continue providing... quality education, nurturing our students’ growth, and advancing our school’s mission. Your commitment to our community makes a lasting impact, and we deeply appreciate your unwavering support.

Adam Chilinski
Advanced Restoration
Adventure Rock
All Fired Up
Amanda Warmenhoven
Angel & Jeff Schmit Family
Ansay & Associates, LLC
Armbruster Jewelers
BAIRD
Bernie’s Fine Meats
Bob Goebel
Breadsmith
Brewster Family
Burghardt Sporting Goods
Carbliss
Casey's
Cave of the Mounds
Costco
Daniel Witkowski DDS | Family Dentistry
DeRiah Boutique Salon
Destination Kohler
Drew's True Value
EAA Aviation Museum
Entech Builders, Inc.
Erin Schmidt
Father Patrick Wendt and St. John XXIII Catholic Parish
Feith Family Ozaukee YMCA
First and Bowl
Gene & Mary Boyer
Gigot Family
Gilman Precision
Gottlieb Family
Gracie and Mrs. Michels
Green Bay Packers
Harbor City Plumbing
Robert Henkle
Inventors Brewpub
Jacob & Patrick Lippe
James Mae Rentals
Jeff Williams
Jim Biever
Juice's Ghost Town
Kaitra Becker & Becky Schires
Kate Sommerfeld
Kendra Scott
Kids in Motion
Kwik Trip
Lackovic Family
Lakeshore Chinooks
Lundgren Family
Making Memories Travel
Marcia Nosko
Marie Lippe
Maven Workshop
Mile Rock Site Solutions LLC
Milwaukee Admirals
Milwaukee Art Museum
Milwaukee Ballet
Milwaukee Public Museum
Milwaukee Wave
Mr. Mendez
Mrs. Zirbes
Mt. Olympus Waterpark
Nate Herlache
Ozaukee County Planning & Parks Dept.
Pear & Simple
Port Washington Police Department
Port Washington State Bank
RE/MAX
Riehle Family
Riveredge Nature Center
Sereno Family
Sharbuno Jewelers
Sharon Cutwell
Sheri Mazariegos | Grace & Wonder Photography
SJ23 Parent Teacher Organization
SJ23 Women's Society
Sunny Day Salon
The Cheesecake Factory
Toast Cedarburg
Tracy Modjeski
Utopia Martial Arts
Wholesome Food Services
WI State Fair
Wilhelmina Balloon Installations
The Zirbes Family

“My dear son, you are my greatest joy and my proudest blessing. Always remember how deeply you are loved. Love, Mom.” ♥️

What a wonderful Mother & Son Event! The room was packed with laughter, joy, and so many special memories. It’s not often we get these precious moments ...with our growing boys, but when we do, we cherish them!

A huge thank you to Sara, Meaghan, and Tonya for all their hard work in making this evening possible, and to Harbor Hills for hosting us!

If you captured any great photos, we’d love to see them—please share in the comments! ♥️

We're in need of BINGO volunteers for February 8th!
Please click the link below if you’re available and willing to help out Mr. Lundgren and his amazing team! We appreciate any and all helpers!
https://www.signupgenius.com/go/10C0944ABAE2BA4FDCE9-54036850-february

Congratulations to the following students on receiving the Mission Awards for the month of January! We are so proud of you! Keep up the great work and continue to SERVE, LEARN, LOVE, LEAD each and every day.