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Cost & Financial Aid

Annual Tuition

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

Merit Scholarships

  • DuchesneYes ($15,000/yr renewable: Janet Erskine Stuart (Catholic middle-schoolers), Madeleine Sophie Barat (continuing Duchesne 8th), Rose Philippine Duchesne (incoming 9th, other schools))
  • 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.)
  • O'ConnellYes (Merit awards for academic performance + extracurricular involvement; parish/community scholarships; multi-student assistance)
  • CathedralYes (Sts. Peter & Paul (merit), Newman (need + formation), essay-based pillar scholarships. Deadline Jan 23, 2027; FACTS application required for any award.)

Need-Based Financial Aid

  • DuchesneYes ($2M+ awarded annually to ~26% of students; Clarity portal)
  • St. ThomasYes (~1/3 of students aided; $2.7M+/yr; awards 10-95% of tuition; Blackbaud; deadline Jan 15, 2027; awards mid-March)
  • O'ConnellYes (Guardian Angel Scholarship (needs-based, volunteer component) via FACTS Grant & Aid; TEFA state accounts accepted)
  • 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.)

Sibling Discount

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

Aid Award Notification

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

Included in Tuition

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

Payment Plans

  • DuchesneFull (May 20) · 2-pay (May / Nov) · 12-month monthly
  • St. ThomasNot Published
  • O'ConnellNot Published
  • CathedralNot Published
Commute from home
Tuition
$33,600

2026-27 rate · Upper School

$27,900

2026-27 rate

$9,100

2025-26 rate (newest published)

$22,850

2026-27 rate

What's included
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
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

No itemized fees published.

Sibling discountNot Published$2,000/yr per sibling after the firstMulti-student assistance available (amount not published)Not Published
Lower school on campus
Yes

PK3–12

HS onlyHS onlyHS only
Open houseNov 1, 2026Dec 6, 2026Not postedNov 7, 2026
Required test
ISEE
ISEE

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

In-house placement test
ISEE (or CLT for classical-school students)
Application deadlineNot postedJan 15, 2027Not postedJan 15, 2027
Decision dateNot postedMar 5, 2027Not postedNot posted
Financial aid
Need-based + Merit
Need-based + Merit
Need-based + Merit
Need-based + Merit
AP courses20213Not posted
Enrollment30079180Not Published
Student:Teacher8.1:19:14.5:1Not Published
MassNot Published
Monthly
Monthly
Daily
Sports12 sports12 sports13 sports11 sports
Links

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