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Daily Life

Enrollment (federal data)

  • CathedralNot Published
  • St. John XXIII432 (NCES PSS 2023-24. Katy campus.)
  • St. Agnes934 (NCES PSS 2023-24 survey year)

Student–Teacher Ratio (federal data)

  • CathedralNot Published
  • St. John XXIII11.3:1 (NCES 2023-24: 432 / 38.1 FTE)
  • St. Agnes12.7:1 (NCES 2023-24: 934 students / 73.8 FTE teachers. Schools count staff differently than NCES FTE.)

Class Schedule

  • CathedralDaily Mass is built into the school day. Terms include a "Candlemas Term," with monthly "Leisure for Culture" long weekends.
  • St. John XXIIINot Published
  • St. AgnesNot Published

Dress Code

  • CathedralNot Published
  • St. John XXIIISue Mills uniforms; red or black logo sweater/vest/cardigan
  • St. AgnesNot Published

Student–Teacher Ratio (school-reported)

  • CathedralNot Published
  • St. John XXIIINot Published
  • St. Agnes9:1
Commute from home
Tuition
$22,850

2026-27 rate

$22,100

2026-27 rate

$28,400

2026-27 rate

What's included
Fees listed separately

No itemized fees published.

Fees listed separately see fees
  • New Student Enrollment Fee: $500
  • Financial aid application (Clarity): $60 — optional
Fees listed separately see fees
  • Application fee: $75 ($125 for transfer applicants)
  • Enrollment deposit: $500
  • Tablet PC (technology): $1,725
  • AP test fee: $105 (per AP / Honors-AP class) — optional
  • Senior fee: $350 (seniors only) — optional
  • Athletics fee: $150 (per sport) — optional
Sibling discountNot Published2nd student $17,680 ($4,420 off)Not Published
Lower school on campusHS onlyHS onlyHS only
Open houseNov 7, 2026Not postedNot posted
Required test
ISEE (or CLT for classical-school students)
ISEE
ISEE

Offered on campus: Nov 14, 2026

Application deadlineJan 15, 2027Not postedNot posted
Decision dateNot postedNot postedNot posted
Financial aid
Need-based + Merit
Need-based + Merit
Need-based

No merit scholarships

AP coursesNot postedNot posted25
EnrollmentNot Published432934
Student:TeacherNot Published11.3:19:1
Mass
Daily
Weekly

Daily Mass also offered

Weekly

Thursdays, 9:10 AM

Sports11 sports13 sports12 sports
Links

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