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Daily Life

Enrollment (federal data)

  • St. John XXIII432 (NCES PSS 2023-24. Katy campus.)
  • St. Catherine's23 (Grades 9-12 (NCES 2023-24: 7/8/6/2); campus total ~265 (14 months-12th).)
  • St. Pius X558 (NCES PSS 2023-24 — school reports 655; different years/methods)

Student–Teacher Ratio (federal data)

  • St. John XXIII11.3:1 (NCES 2023-24: 432 / 38.1 FTE)
  • St. Catherine'sNot Published
  • St. Pius X14:1 (NCES 2023-24: 558 / 39.9 FTE. Schools count staff differently than NCES FTE.)

Dress Code

  • St. John XXIIISue Mills uniforms; red or black logo sweater/vest/cardigan
  • St. Catherine'sNot Published
  • St. Pius XNot Published

Enrollment (school-reported)

  • St. John XXIIINot Published
  • St. Catherine'sNot Published
  • St. Pius X655

Full Campus

  • St. John XXIIINot Published
  • St. Catherine's14 months - 12th grade (coed); Adolescent Community gr 7-9; High School gr 10-12 (launched 2017)
  • St. Pius XNot Published

School Day

  • St. John XXIIINot Published
  • St. Catherine's8:00 AM - 3:45 PM (extended care available)
  • St. Pius XNot Published

Student–Teacher Ratio (school-reported)

  • St. John XXIIINot Published
  • St. Catherine'sNot Published
  • St. Pius X7:1

Transportation

  • St. John XXIIINot Published
  • St. Catherine'sNot Published
  • St. Pius X3 bus lines ($1,550/yr): Orange (West U/Bellaire/Meyerland), Gray (Spring Branch/Memorial/Katy), Black (Cypress/Tomball/Willowbrook); late run 6:15 M-Th (School-operated bus service.)
Commute from home
Tuition
$22,100

2026-27 rate

$20,560

2026-27 rate · 9th grade; grades 10-12: $20,753

$22,850

2026-27 rate

What's included
Fees listed separately see fees
  • New Student Enrollment Fee: $500
  • Financial aid application (Clarity): $60 — optional
Fees listed separately see fees
  • Application fee: $150
  • Tuition deposit: $750
  • New Student Fee: $850
  • Facility fee: $800
  • Program fee: $2,500–$2,750
Fees listed separately see fees
  • Registration fee (new students): $350
  • Graduation fee (seniors): $280 (seniors)
  • Athletics fee: $150–$350 (per sport) — optional
  • Learning for Success program: $2,500 (if enrolled in program) — optional
  • Bus transportation: $1,550 — optional
Sibling discount2nd student $17,680 ($4,420 off)10% off for each younger siblingHalf tuition for a 3rd concurrently enrolled child
Lower school on campusHS only
Yes

14 months–12th (Montessori)

HS only
Open houseNot postedNot postedNot posted
Required test
ISEE
None
ISEE
Application deadlineNot postedJan 15, 2027Not posted
Decision dateNot postedMar 5, 2027Not posted
Financial aid
Need-based + Merit
Need-based
Need-based + Merit
AP coursesNot postedNot postedNot posted
Enrollment43223655
Student:Teacher11.3:114.4:17:1
Mass
Weekly

Daily Mass also offered

Monthly
Monthly
Sports13 sports6 sports14 sports
Links

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