St. John XXIII College Preparatory
1800 W Grand Pkwy N, Katy, TX 77449Open, per Google (checked Sep 20, 2026)
Key facts
- Tuition, 2026-27
- $22,100
- Grades
- 9-12
- Students (K-12)
- 432
- Students per teacher
- 11.3
- Affiliation
- Roman Catholic
- From Katy center
- 4.2 miles
Can you use TEFA here?
✓ On the official Texas Education Freedom Accounts list
- State list
- Includes this school
- Applying
- The 2026-27 application window ran February 4 to March 31, 2026: it first closed March 17 and was extended to March 31 (the Comptroller’s home page; its Families page still shows March 17). No 2027-28 dates are posted yet; the state offers an interest list for updates.
Source: the official list, dated October 26, 2026.
What you would pay here
- Tuition
- $22,100 (grades 9 to 12, 2026-27)
- Award
- about $10,474
- Left to pay
- about $11,626, before fees
Award $10,474 Left to pay $11,626
- Tuition: the school’s website, checked October 5, 2026.
- Award: Texas Education Freedom Accounts, official site (Texas Comptroller), read October 9, 2026.
- Lowest listed grade band; fees and aid not included. Change the numbers
School facts
- Teachers
- 40
- Student body
- Coeducational
- Diocese
- Diocese of Galveston-Houston, TX
- Boys and girls
- 44% boys, 56% girls
- Go on to a 4-year college
- 100%
- Setting
- City
- School facts, kindergarten to grade 12: U.S. Department of Education, NCES Private School Survey 2023-24, read September 20, 2026.
Where this comes from. Something wrong? Tell us and we will fix it.
Students and school year
Enrollment over time
- 2019-20 to 2023-24
- 436 to 432, down 4 (1%)
- Path
- Dipped to 408 in 2021-22, then recovered part of the way
Students by grade, 2023-24
- Largest grade
- Grade 9 (124)
- Smallest grade
- Grade 10 (96)
- Average a grade
- About 108
The school year
- Days in the school year
- 189
- Length of the school day
- 7 hours
- Hours of school a year
- about 1,320
- Classes, 2023-24
- In person
- Library or media center
- Yes
- Year, against Texas
- 13 days longer than the 176-day median of 1,203 schools we list
- School day, against Texas
- 15 minutes shorter than the median of 7 hours 15 minutes (1,252 schools we list)
How it compares
- Students per teacher
- 11.3 here; median 10.1 at 66 TX secondary schools
- Size in Harris County
- Larger than 142 of 168 other schools we list
Student body, 2023-24
Shares of K-12 students by race and ethnicity, as NCES reports them.
- Grades, school year and student body: U.S. Department of Education, NCES Private School Survey 2023-24, read September 20, 2026.
- Earlier counts: NCES Private School Survey 2019-20 and 2021-22, read October 14, 2026.
- Comparisons: the private schools ChoiceFunded lists, as of this page’s last update.
St. John XXIII College Preparatory tuition, and what TEFA pays
- Grades 9 to 12, 2026-27
- $22,100
What is left after the award: worked out at the top of this page.
Tuition from St. John XXIII College Preparatory's website, checked October 5, 2026.
Texas Education Freedom Accounts Education savings account
- Award
- $10,474 per private school student for 2026-27
- How it varies
- More for students with disabilities; $2,000 for homeschooled students.
Figures read from each program’s official pages, October 8, 2026. Sources and how to apply
What would you pay at St. John XXIII College Preparatory?
Use $0 or more.
Tuition and fees TEFA pays You pay per year Spread over 10 months
- Tuition filled in: the lowest published price we list (grades 9 to 12, 2026-27).
- Award filled in: the 2026-27 TEFA award for that grade band.
- Change them for your child’s grade.
- Ask the school
- Whether its published 2026-27 tuition is still current; whether it still takes Education Freedom Account (TEFA) for 2026-27; its application deadline. More questions to ask
Tuition at nearby private schools
| School | Published tuition | Year | Miles |
|---|---|---|---|
| British International School of Houston | $31,975 to $36,950 | 2026-27 | 2.1 |
| Katy Christian Academy | $7,300 | 2026-27 | 2.5 |
Each figure was read on that school's own website. Ranges run from the lowest to the highest grade band.
Other private schools nearby
| School | Grades | Students | Miles |
|---|---|---|---|
| Faith West Academy | PreK-12 | 300 | 1 |
| Safari Kids Learning Center ✓ | K | 12 | 2 |
| British International School of Houston ✓ | PreK-12 | 939 | 2 |
| Guidepost Montessori at Katy ✓ | PreK-K | 10 | 2 |
| Katy Christian Academy ✓ | PreK-12 | 98 | 3 |
| Cross Point Preschool Katy | PreK-Transitional K | 24 | 3 |
| Katy Adventist Christian School ✓ | PreK-8 | 23 | 3 |
| Mirus Academy ✓ | 8-12 | 30 | 3 |
On the program’s official list Other private schools
No new TEFA application dates are posted yet. How TEFA works.
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