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
CLICK HERE FOR THE 2026 ANNUAL FLOWER SALE CATALOG, ORDER FORM, AND MORE INFORMATION!
“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!
WEAR BLUE! April is Child Abuse Prevention Month and Safe Environment week is April 19th–April 25th. To help bring awareness to this, students may bring $2 to be out of uniform on Monday, April 20th. Students must wear blue and jeans are allowed! (No holes or rips in jeans). The money will be ...donated to United Way Northern Ozaukee, who partners with the Child Advocacy Center, to help families and children affected by abuse. 💙
Join us in celebrating our incredible teachers during Teacher Appreciation Week, May 4–8, 2026! Each day is a simple, fun way for students and families to show gratitude for the dedication, care, and inspiration our teachers bring to the classroom every single day. Whether it’s a handwritten ...note, a kind gesture, or a sweet treat, every act of appreciation makes a difference. Let’s come together as a community to make our teachers feel truly valued and celebrated all week long!
Congratulations to our Mission Award Recipients! We are so proud!
All are welcome to join but spots are limited so sign up today!: https://stjohn23rd.ccbchurch.com/goto/forms/380/responses/new
GREAT NEWS! The Flower Sale Committee has extended the Pre-Sale Deadline to April 15th (this Wednesday)! If you haven't ordered yet...now is your chance! 🌺
