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Cost & Financial Aid

Annual Tuition

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

Need-Based Financial Aid

  • DuchesneYes ($2M+ awarded annually to ~26% of students; Clarity portal)
  • 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)

Sibling Discount

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

Aid Award Notification

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

Included in Tuition

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

Payment Plans

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

2026-27 rate · Upper School

$22,850

2026-27 rate

$9,100

2025-26 rate (newest published)

$27,900

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

PK3–12

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

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

Application deadlineNot postedJan 15, 2027Not postedJan 15, 2027
Decision dateNot postedNot postedNot postedMar 5, 2027
Financial aid
Need-based + Merit
Need-based + Merit
Need-based + Merit
Need-based + Merit
AP courses20Not posted321
Enrollment300Not Published80791
Student:Teacher8.1:1Not Published4.5:19:1
MassNot Published
Daily
Monthly
Monthly
Sports12 sports11 sports13 sports12 sports
Links

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