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Cost & Financial Aid

Annual Tuition

  • Cathedral2,285,000 (2026-27 rate)
  • O'Connell910,000 (2025-26 rate (newest published))
  • St. Thomas2,790,000 (2026-27 rate)
  • Duchesne3,360,000 (2026-27 rate · Upper School)

Merit Scholarships

  • CathedralYes (Sts. Peter & Paul (merit), Newman (need + formation), essay-based pillar scholarships. Deadline Jan 23, 2027; FACTS application required for any award.)
  • O'ConnellYes (Merit awards for academic performance + extracurricular involvement; parish/community scholarships; multi-student assistance)
  • St. ThomasYes (Academic Scholarship Program (ISEE-based), Gabel Scholarship (80% tuition, ~2/yr), Basilian Fathers', Principal's/Aquinas scholarships (GPA-renewable). Sibling discount $2,000/yr after first.)
  • DuchesneYes ($15,000/yr renewable: Janet Erskine Stuart (Catholic middle-schoolers), Madeleine Sophie Barat (continuing Duchesne 8th), Rose Philippine Duchesne (incoming 9th, other schools))

Need-Based Financial Aid

  • CathedralYes (Administered through FACTS Grant & Aid. The school reports an endowment restricted to tuition assistance, and states that it works with accepted families on affordability.)
  • O'ConnellYes (Guardian Angel Scholarship (needs-based, volunteer component) via FACTS Grant & Aid; TEFA state accounts accepted)
  • St. ThomasYes (~1/3 of students aided; $2.7M+/yr; awards 10-95% of tuition; Blackbaud; deadline Jan 15, 2027; awards mid-March)
  • DuchesneYes ($2M+ awarded annually to ~26% of students; Clarity portal)

Sibling Discount

  • CathedralNot Published
  • O'ConnellMulti-student assistance available (amount not published)
  • St. Thomas$2,000/yr per sibling after the first
  • DuchesneNot Published

Aid Award Notification

  • CathedralNot Published
  • O'ConnellNot Published
  • St. ThomasNot Published
  • Duchesne2027-03-05 (Award acceptance Mar 24, 2027.)

Included in Tuition

  • CathedralNot Published
  • O'ConnellNot Published
  • St. ThomasLaptop & technology
  • DuchesneNot Published

Payment Plans

  • CathedralNot Published
  • O'ConnellNot Published
  • St. ThomasNot Published
  • DuchesneFull (May 20) · 2-pay (May / Nov) · 12-month monthly
Commute from home
Tuition
$22,850

2026-27 rate

$9,100

2025-26 rate (newest published)

$27,900

2026-27 rate

$33,600

2026-27 rate · Upper School

What's included
Fees listed separately

No itemized fees published.

Fees listed separately see fees
  • Registration fee: $450
  • Technology fee: $200
  • Sports fee: $150–$250 (per sport ($450 all-season package)) — optional
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
  • 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
Sibling discountNot PublishedMulti-student assistance available (amount not published)$2,000/yr per sibling after the firstNot Published
Lower school on campusHS onlyHS onlyHS only
Yes

PK3–12

Open houseNov 7, 2026Not postedDec 6, 2026Nov 1, 2026
Required test
ISEE (or CLT for classical-school students)
In-house placement test
ISEE

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

ISEE
Application deadlineJan 15, 2027Not postedJan 15, 2027Not posted
Decision dateNot postedNot postedMar 5, 2027Not posted
Financial aid
Need-based + Merit
Need-based + Merit
Need-based + Merit
Need-based + Merit
AP coursesNot postedNot posted2120
EnrollmentNot Published80791300
Student:TeacherNot Published4.5:19:18.1:1
Mass
Daily
Monthly
Monthly
Not Published
Sports11 sports13 sports12 sports12 sports
Links

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