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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.
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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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2026-2027 EXTRACURRICULAR CLUBS
Clubs meet from 3:30-4:30 PM and are held in two sessions:
Dance Club
Piano Club
Coloring & Paint-By-Number
Magic School (AI & Creativity) Club
Construction (LEGO) Club
Early Childhood Building Club
Introduction to 3D Printing
Wild Card Club
Board Games
Sign Language
Sole Mates | Walking Club
Why St. John XXIII Catholic School?
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Some pretty great role models for our students to look up to!
What a special day as our students enjoyed lunch with the Port Washington Police Department and the Ozaukee County Sheriff’s Office! We are so thankful for the men and women who protect and serve our community each and every day. Thank you for spending time with our students and helping build Read morethese meaningful connections with our school community! We are grateful for you today and ALWAYS!
Students made guacamole and pico de gallo in their Gardening Elective! Ingredients included: limes, tomatoes, cilantro, onion and peppers!
A little bit of magic took flight today! Our students had the special opportunity to release two monarch butterflies and watch them begin their journey into the world.
Have you met Gracie?
We are so thankful for the joy and comfort Gracie brings to our hallways! Gracie is an English Cream Retriever and a certified therapy dog through Pets Helping People. She visits our school with Mrs. Michel, bringing a little extra love and support wherever she goes. Read moreYou might find her listening to a student read, helping during testing, joining a student for a special calming walk, offering comfort on a tough day, or simply providing a friendly presence.
Mrs. Michel, a retired School Counselor with 29 years of experience in the Port Washington-Saukville School District, partners with Gracie to promote kindness, respect, and happiness throughout our school community. We are so lucky to have them!