What Academic and College Readiness Opportunities Are Available at St. John XXIII College Preparatory?

St. John XXIII College Preparatory (SJ23) is a private, coed Catholic high school in Katy, Texas, serving grades 9–12, and its academic program is built around college preparation. According to the school's website, it offers 144 different course offerings, maintains a 13:1 student-to-faculty ratio, reports a 100% college acceptance rate for the Class of '24, and states that more than $11 million in scholarships was awarded to that graduating class. The site organizes academics into three areas: Excellence in Academics, College Readiness, and Academic Support Services.

The academic program at a glance

These figures come from the "At A Glance" section of the school's homepage and describe the school's own reporting, not an independent ranking or audit.

What "college readiness" covers

The website lists College Readiness as a distinct page under Academics, alongside Excellence in Academics and Academic Support Services. That structure suggests college preparation is treated as its own area of programming rather than only an outcome of coursework. The site also notes a recent announcement of College Board AP success, indicating Advanced Placement work is part of the academic offering.

Because the site does not publish course-by-course requirements, AP course counts, or graduation credit rules in the material available here, families who need those specifics should request the current course catalog and graduation requirements directly from the school.

Academic support

Academic Support Services appears as a separate page under Academics, which signals that the school provides structured support beyond regular instruction. The website excerpt does not detail what those services include — for example, whether support is delivered through a learning center, scheduled sessions, or accommodations — so the scope should be confirmed with the school.

How to evaluate the fit

• If your priority is a broad curriculum: 144 course offerings is a concrete number to compare against other private high schools of similar size.
• If class size matters to you: a 13:1 ratio describes the school overall; ask for typical class sizes in the specific courses your student would take.
• If you are weighing college outcomes: the 100% acceptance and $11M+ scholarship figures apply to the Class of '24 and are self-reported. Ask how the school defines "college acceptance" and whether it includes all graduates.
• If your student needs learning support: request a description of Academic Support Services, including eligibility, scheduling, and any additional cost.
• If you want to see the school first: the site lists a "Visit SJ23" option under Admissions, and the calendar includes events such as Parent Teacher Conferences and house Masses.

Practical next steps

1. Start with the Academics section of sj23lions.org to read the Excellence in Academics, College Readiness, and Academic Support Services pages.
2. Use Admissions → How to Apply and Important Dates to align your application timeline.
3. Check Tuition & Financial Aid for cost and aid information, since pricing is not published in the material reviewed here.
4. If you are applying from outside the United States, review the International Student Program page.
5. Contact the school directly for the current course catalog, AP offerings, graduation requirements, and details of academic support services, as these specifics are not fully documented on the public pages available.