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Daily Life

Dress Code

  • St. Catherine'sNot Published
  • St. ThomasCollared shirt + khakis + dress shoes; dress days add white button-up, red tie, blue blazer
  • FrassatiRisse Brothers + Lands' End uniforms
  • O'ConnellNot Published

Enrollment (federal data)

  • St. Catherine's23 (Grades 9-12 (NCES 2023-24: 7/8/6/2); campus total ~265 (14 months-12th).)
  • St. ThomasNot Published
  • FrassatiNot Published
  • O'Connell80 (NCES PSS 2023-24. Island campus; 4.5:1 student-teacher ratio.)

Enrollment (school-reported)

  • St. Catherine'sNot Published
  • St. Thomas791 (2025-26; no NCES record exists for this school)
  • Frassati364 (2025-26 Fast Facts; NCES 2023-24: 321 — young, growing school (opened 2013))
  • O'ConnellNot Published

School Day

  • St. Catherine's8:00 AM - 3:45 PM (extended care available)
  • St. ThomasNot Published
  • FrassatiNot Published
  • O'ConnellClasses 8:00 AM - 3:20 PM

Transportation

  • St. Catherine'sNot Published
  • St. ThomasNo bus service; CarpooltoSchool partnership; parking garage (permit + fee)
  • FrassatiNot Published
  • O'ConnellPaid van stops in Dickinson and La Marque (mainland commuters)

Class Schedule

  • St. Catherine'sNot Published
  • St. Thomas7:50 AM - 3:10 PM modified block — four 80-minute classes, 35-min advisory, 55-min lunch
  • FrassatiNot Published
  • O'ConnellNot Published

Full Campus

  • St. Catherine's14 months - 12th grade (coed); Adolescent Community gr 7-9; High School gr 10-12 (launched 2017)
  • St. ThomasNot Published
  • FrassatiNot Published
  • O'ConnellNot Published

Student–Teacher Ratio (federal data)

  • St. Catherine'sNot Published
  • St. ThomasNot Published
  • Frassati12.8:1 (NCES 2023-24: 321 / 25.0 FTE; school reports 11:1)
  • O'ConnellNot Published
Commute from home
Tuition
$20,560

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

$27,900

2026-27 rate

$24,050

2026-27 rate

$9,100

2025-26 rate (newest published)

What's included
Fees listed separately see fees
  • Application fee: $150
  • Tuition deposit: $750
  • New Student Fee: $850
  • Facility fee: $800
  • Program fee: $2,500–$2,750
Included in tuition see list
  • Laptop & technology

Charged separately:

  • Application fee: $75
  • Registration fee: $700
  • Camp Aquinas (freshman retreat): $650 (freshmen)
  • Class retreat: $325 (returning/transfer students)
  • Books: $550
  • Athletics fee: $250 (per sport) — optional
  • AP exam: $99 (per course) — optional
Included in tuition see list
  • Technology fee ($500)
  • Registration ($300)
  • Student activities ($400)
  • Textbooks ($650)

Charged separately:

  • Application fee: $75–$125
  • Enrollment deposit (new families): $700
  • Athletics & Fine Arts fee: $250 (per sport/season) — optional
Fees listed separately see fees
  • Registration fee: $450
  • Technology fee: $200
  • Sports fee: $150–$250 (per sport ($450 all-season package)) — optional
Sibling discount10% off for each younger sibling$2,000/yr per sibling after the first$3,000 off 2nd student; $9,425 off 3rd (tuition only)Multi-student assistance available (amount not published)
Lower school on campus
Yes

14 months–12th (Montessori)

HS onlyHS onlyHS only
Open houseNot postedDec 6, 2026Oct 28, 2026Not posted
Required test
None
ISEE

Offered on campus: Nov 14, 2026 · Jan 9, 2027

HSPT or ISEE

Offered on campus: Jan 9, 2027 · Jan 23, 2027

In-house placement test
Application deadlineJan 15, 2027Jan 15, 2027Not postedNot posted
Decision dateMar 5, 2027Mar 5, 2027Not postedNot posted
Financial aid
Need-based
Need-based + Merit
Need-based
Need-based + Merit
AP coursesNot posted21Not postedNot posted
Enrollment2379136480
Student:Teacher14.4:19:111:14.5:1
Mass
Monthly
Monthly
Weekly

Thursdays, 9:15 AM

Monthly
Sports6 sports12 sports13 sports13 sports
Links

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