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Daily Life

Enrollment (federal data)

  • St. John XXIII432 (NCES PSS 2023-24. Katy campus.)
  • O'Connell80 (NCES PSS 2023-24. Island campus; 4.5:1 student-teacher ratio.)

Dress Code

  • St. John XXIIISue Mills uniforms; red or black logo sweater/vest/cardigan
  • O'ConnellNot Published

School Day

  • St. John XXIIINot Published
  • O'ConnellClasses 8:00 AM - 3:20 PM

Student–Teacher Ratio (federal data)

  • St. John XXIII11.3:1 (NCES 2023-24: 432 / 38.1 FTE)
  • O'ConnellNot Published

Transportation

  • St. John XXIIINot Published
  • O'ConnellPaid van stops in Dickinson and La Marque (mainland commuters)
Commute from home
Tuition
$22,100

2026-27 rate

$9,100

2025-26 rate (newest published)

What's included
Fees listed separately see fees
  • New Student Enrollment Fee: $500
  • Financial aid application (Clarity): $60 — optional
Fees listed separately see fees
  • Registration fee: $450
  • Technology fee: $200
  • Sports fee: $150–$250 (per sport ($450 all-season package)) — optional
Sibling discount2nd student $17,680 ($4,420 off)Multi-student assistance available (amount not published)
Lower school on campusHS onlyHS only
Open houseNot postedNot posted
Required test
ISEE
In-house placement test
Application deadlineNot postedNot posted
Decision dateNot postedNot posted
Financial aid
Need-based + Merit
Need-based + Merit
AP coursesNot postedNot posted
Enrollment43280
Student:Teacher11.3:14.5:1
Mass
Weekly

Daily Mass also offered

Monthly
Sports13 sports13 sports
Links

“Not posted” means the school hasn’t published it yet for this admissions cycle — check each school’s full profile for sources.