About

Welcome

    • Mr. Joseph Noonan

Principal's Welcome

Welcome to SJ23!

Thank you for taking the time to peruse our website. This virtual look gives  an idea of who we are – but I hope you will call to arrange a visit. When you step on our campus, you will feel the excitement of learning, the expansive freedom that comes from our 35-acre campus, and the welcoming warmth from our faculty, staff, and students.

Since 2004, we have held fast to our motto Parare Mente et Corde, to prepare in mind and heart, and are proud of our longstanding tradition of academic achievement that includes National Merit Finalists and Advanced Placement scholars. We offer countless competitive sports programs, successful fine and performing arts, and opportunities for spiritual growth. We also have a unique House system; the five Houses are comprised of students from all grade levels and led by seniors. The Houses compete throughout the year for the prized Roncalli Cup.

Most importantly, we educate young men and women who will be fully prepared for life's challenges and who will know and understand the teachings of the Catholic Church.

Come see us and learn more about what SJ23 has to offer!

Yours in Christ,
𝒥𝑜𝓈𝑒𝓅𝒽 𝒩𝑜𝑜𝓃𝒶𝓃
Principal

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Our Mission

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  • Mission Statement

    St. John XXIII College Preparatory forms the hearts and minds of young men and women in a Christ-centered community dedicated to academic excellence, the pursuit of virtue, and service to others in the Tradition of the Catholic Church.

    St. John XXIII College Preparatory is an independent co-educational Catholic high school located in the greater-Houston suburb of Katy, Texas. Founded in 2001, our mission rests on Four Pillars which reflect the papacy of our patron, Pope St. John XXIII, and the transformative spirit of the Second Vatican Council which he convened in 1962.

Our Pillars

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  • Oboedientia - Pax - Virtus - Renovatio

    We accomplish our mission by forming students into men and women of character, equipping them to be successful in this life through rigorous academic study, and by fostering a love for Christ and an identity rooted in Him. Our Four Pillars provide us with a foundation for everything we do as a school - from academics and extracurricular activities to athletics and administration - in an authentic expression of the spirituality envisioned by St. John XXIII and the Second Vatican Council.

  • Oboedientia

    Learning to trust the voice of God

    As we come to know what God’s voice sounds like in Holy Scripture and the teaching of the Church, we are able to hear God’s voice everywhere and discern His calling for our lives.

  • Pax

    Experiencing God’s peace through liturgy

    We experience wholeness within ourselves when we encounter God’s grace in the Sacraments - particularly the Mass - and when we see Him at work all around us in the symbols of our faith, the seasons of the Church year, and the lives of the patron saints of our Houses.

  • Virtus

    Forming character that leads to virtuous action

    The more we learn what goodness actually is - through excellence in academics, athletics, and service - the more we develop habits of virtue that allow us to lead happy, holy lives.

  • Renovatio

    Renewing the Church and the world

    A broad and diverse education, grounded in Catholic social teaching, prepares us to become leaders in our communities, engaging with the problems of the modern world and striving for justice, mutual understanding among peoples, and the protection of human dignity.
Never hesitate to hold out your hand; never hesitate to accept the outstretched hand of another.
-Pope St. John XXIII

The St. John XXIII Coat of Arms

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  • About the Coat of Arms

    The St. John XXIII College Preparatory Coat of Arms is that of Pope St. John XXIII, himself.

  • Parare Mente et Corde

    To Prepare in Mind and Heart

  • Blazon (Official Heraldic Decsription)

    "Gules a fess Argent; in chief two fleur-de-lis Argent and overall a tower embattled Argent; on a chief Argent the lion of St. Mark Or"

  • Papal Tiara

    Though no longer in use, the triple-crown is still the heraldic coronet of the pope. It consists of three crowns to represent the pope's supreme authority as priest, prophet, and king.

  • Peter's Keys

    From Matt 16:19, they are a symbol of papal authority. The Keys are part of every pope's coat of arms.

  • Roncalli Family Arms

    St. John XXIII was born Angelo Guiseppe Roncalli, in a small town in the Lombardy region of northern Italy. He incorporated his family's coat of arms into his personal arms as bishop, then Cardinal Patriarch of Venice, and finally as Pope.

  • Winged Lion

    Symbol of St. Mark the Evangelist, patron of Venice, Italy. Before he was pope, St. John was the Patriarch (Archbishop) of Venice.

    The latin phrase "Pax tibi Marce Evangelista meus," (Peace unto you, Mark, my Evangelist) refers to a Venetian legend that, while visiting the region, St. Mark was met by an angel who told him that the Venetian lagoon would be his final resting place.

    From this symbol, we get our mascot, the Lion. Also of note, we take St. Mark as a secondary patron of the school and celebrate the Jr.
    Ring Mass on his feast day, April 25.
1800 W. Grand Parkway N. | Katy, Texas 77449
p 281.693.1000
f 281.693.1001
St. John XXIII College Preparatory forms the hearts and minds of young men and women in a Christ-centered community dedicated to academic excellence, the pursuit of virtue, and service to others in the Tradition of the Catholic Church.