Discover the Difference of Catholic Education

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!

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?

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A huge thank you to all of the kids who joined us for Summer Soccer Camp! We were thrilled to have Milwaukee Wave player Ricardo Carvalho share his knowledge, passion, and talent with our young athletes.

With the World Cup capturing everyone’s attention, it was the perfect time for our ...campers to sharpen their skills, learn new techniques, and grow their love for the game. From drills and skill-building…to plenty of laughs and fun, it was a fantastic week on the field.

Thank you, Ricardo, for inspiring the next generation of soccer players, and thank you to all of our campers for bringing the energy every day. What a fun week!

Only 20 remain! Click here to purchase your picket today: https://stjohn23rd.ccbchurch.com/.../forms/397/responses/new

Farewell, Father Pat!

This past Saturday, we celebrated Father Pat’s final Mass and had the opportunity to thank him for his many years of service, dedication, and faithful leadership to our parish and school community. We are incredibly grateful for the impact he has had on generations ...of SJ23 students and families.

Please join us in wishing Father Pat many blessings as he begins this next chapter. He will always be a part of our SJ23 family.

As we say goodbye, we are also excited to welcome Father Kirk, who will be joining our community this week. We look forward to getting to know him and beginning this new chapter together.

Thank you, Father Pat, and welcome, Father Kirk!

Support Our 8th Grade Class Trip Fundraiser!
Please support our 8th graders as they raise funds for their 2027 trip to Washington, D.C.! Stop by Piggly Wiggly in Port Washington on Sunday, June 14, from 10:00 a.m.–3:00 p.m. Enjoy brats ($5), hot dogs ($3), and meal deals available throughout ...the day. Thank you for your support!

There is still time to register for our upcoming volleyball season! Volleyball is open to all students in grades 4th-8th. The season runs from August through October and includes weekday practices as well as one to two games each weekend.

If your child is interested in participating, ...please complete the registration forms: https://stjohn23rd.school/athletics/

We are also seeking volunteer coaches to help lead our teams this season!Thank you for your support. We look forward to a great volleyball season!

Children's Liturgy of the Word (CLOW) — Make the Word Come Alive for Our Kids!

Each Sunday at our 5:00 PM Mass, children in Kindergarten through 2nd Grade are invited to participate in Children's Liturgy of the Word (CLOW).

During this special time, our youngest ...parishioners hear and explore the same Scripture readings as the rest of the parish community—presented in a way that is engaging and meaningful for them. Through age-appropriate storytelling, discussion, and reflection, children don't just hear God's Word; they interact with it, ask questions, and carry its message home in their hearts.

We need you! This beautiful ministry is seeking warm, enthusiastic volunteers to help lead our young disciples in breaking open the Sunday Scriptures. No theology degree is required—just a love for our faith and a heart for children. Training and all materials are provided. Interested in learning more? Contact: goodnod@stjohn23rd.org or call 262-284-2102.

Help us nurture the faith of our youngest parishioners—one Sunday at a time.