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Daily Life

Dress Code

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

Enrollment (federal data)

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

Enrollment (school-reported)

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

School Day

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

Transportation

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

Class Schedule

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

Full Campus

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

Student–Teacher Ratio (federal data)

  • St. ThomasNot Published
  • O'ConnellNot Published
  • St. Catherine'sNot Published
  • Frassati12.8:1 (NCES 2023-24: 321 / 25.0 FTE; school reports 11:1)
Commute from home
Tuition
$27,900

2026-27 rate

$9,100

2025-26 rate (newest published)

$20,560

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

$24,050

2026-27 rate

What's included
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
Fees listed separately see fees
  • Registration fee: $450
  • Technology fee: $200
  • Sports fee: $150–$250 (per sport ($450 all-season package)) — 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
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
Sibling discount$2,000/yr per sibling after the firstMulti-student assistance available (amount not published)10% off for each younger sibling$3,000 off 2nd student; $9,425 off 3rd (tuition only)
Lower school on campusHS onlyHS only
Yes

14 months–12th (Montessori)

HS only
Open houseDec 6, 2026Not postedNot postedOct 28, 2026
Required test
ISEE

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

In-house placement test
None
HSPT or ISEE

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

Application deadlineJan 15, 2027Not postedJan 15, 2027Not posted
Decision dateMar 5, 2027Not postedMar 5, 2027Not posted
Financial aid
Need-based + Merit
Need-based + Merit
Need-based
Need-based
AP courses21Not postedNot postedNot posted
Enrollment7918023364
Student:Teacher9:14.5:114.4:111:1
Mass
Monthly
Monthly
Monthly
Weekly

Thursdays, 9:15 AM

Sports12 sports13 sports6 sports13 sports
Links

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