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Daily Life

Enrollment (school-reported)

  • 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))
  • DuchesneNot Published
  • St. Peter CTHS26 (2024-25 (15 freshmen + 11 sophomores), growing one grade/year — first senior class 2026-27. Founded 2022; too new for an NCES record.)

Class Schedule

  • St. Thomas7:50 AM - 3:10 PM modified block — four 80-minute classes, 35-min advisory, 55-min lunch
  • FrassatiNot Published
  • DuchesneSix-term modular "MOD" schedule — 80-minute classes, 3-4 courses per mod, 29-30 days/mod
  • St. Peter CTHSNot Published

Dress Code

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

Student–Teacher Ratio (federal data)

  • St. ThomasNot Published
  • Frassati12.8:1 (NCES 2023-24: 321 / 25.0 FTE; school reports 11:1)
  • Duchesne8.1:1 (NCES 2023-24, campus-wide)
  • St. Peter CTHSNot Published

Transportation

  • St. ThomasNo bus service; CarpooltoSchool partnership; parking garage (permit + fee)
  • FrassatiNot Published
  • DuchesneNot Published
  • St. Peter CTHSSchool transports students to HCC campuses during the school day (home transport not published)

Enrollment (federal data)

  • St. ThomasNot Published
  • FrassatiNot Published
  • Duchesne300 (Upper School 9-12 (NCES 2023-24: 89/74/65/72). Total campus 761.)
  • St. Peter CTHSNot Published

Full Campus

  • St. ThomasNot Published
  • FrassatiNot Published
  • DuchesnePK3–12 (all-girls); Upper School is grades 9–12
  • St. Peter CTHSNot Published
Commute from home
Tuition
$27,900

2026-27 rate

$24,050

2026-27 rate

$33,600

2026-27 rate · Upper School

$15,000

2026-27 rate · most families pay far less after aid

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
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
  • New Student Fee: $1,500
  • Enrollment deposit: $1,000
  • Technology fee (Grade 9): $2,600
  • Textbooks: $350 (approximate, Upper School)
  • Grade 10 College Tour: $500 (grade 10)
  • Graduation fee: $600 (seniors)
  • Class trips: $175–$2,800 — optional
  • AP exams: $100–$200 (per exam) — optional
  • Athletics fee: $150–$300 (per sport) — optional
Fees listed separately

No itemized fees published.

Sibling discount$2,000/yr per sibling after the first$3,000 off 2nd student; $9,425 off 3rd (tuition only)Not PublishedNot Published
Lower school on campusHS onlyHS only
Yes

PK3–12

HS only
Open houseDec 6, 2026Oct 28, 2026Nov 1, 2026Not posted
Required test
ISEE

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

HSPT or ISEE

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

ISEE
None
Application deadlineJan 15, 2027Not postedNot postedNot posted
Decision dateMar 5, 2027Not postedNot postedNot posted
Financial aid
Need-based + Merit
Need-based
Need-based + Merit
Need-based
AP courses21Not posted20Not posted
Enrollment79136430026
Student:Teacher9:111:18.1:1Not Published
Mass
Monthly
Weekly

Thursdays, 9:15 AM

Not Published
Monthly
Sports12 sports13 sports12 sportsNot posted
Links

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