Compare Schools

Pick up to 4 schools to see them side by side.

Clear all

4 of 4 selected

Explore by category

Pick a category to see everything these schools publish about it, side by side.

Cost & Financial Aid

Annual Tuition

  • St. John XXIII2,210,000 (2026-27 rate)
  • St. Thomas2,790,000 (2026-27 rate)
  • Duchesne3,360,000 (2026-27 rate · Upper School)
  • O'Connell910,000 (2025-26 rate (newest published))

Merit Scholarships

  • St. John XXIIIYes (SJ23 Merit Scholarship for students demonstrating excellence)
  • 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))
  • O'ConnellYes (Merit awards for academic performance + extracurricular involvement; parish/community scholarships; multi-student assistance)

Need-Based Financial Aid

  • St. John XXIIIYes (Clarity ($60 fee); aid families also apply for TEFA (doesn't reduce SJ23 aid) and complete 10-40 volunteer hours)
  • 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)
  • O'ConnellYes (Guardian Angel Scholarship (needs-based, volunteer component) via FACTS Grant & Aid; TEFA state accounts accepted)

Sibling Discount

  • St. John XXIII2nd student $17,680 ($4,420 off)
  • St. Thomas$2,000/yr per sibling after the first
  • DuchesneNot Published
  • O'ConnellMulti-student assistance available (amount not published)

Payment Plans

  • St. John XXIII1 payment (no fee) · 2 payments (+$100) · 10 payments May-Feb (+$200)
  • St. ThomasNot Published
  • DuchesneFull (May 20) · 2-pay (May / Nov) · 12-month monthly
  • O'ConnellNot Published

Aid Award Notification

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

Included in Tuition

  • St. John XXIIINot Published
  • St. ThomasLaptop & technology
  • DuchesneNot Published
  • O'ConnellNot Published
Commute from home
Tuition
$22,100

2026-27 rate

$27,900

2026-27 rate

$33,600

2026-27 rate · Upper School

$9,100

2025-26 rate (newest published)

What's included
Fees listed separately see fees
  • New Student Enrollment Fee: $500
  • Financial aid application (Clarity): $60 — 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
Fees listed separately see fees
  • Registration fee: $450
  • Technology fee: $200
  • Sports fee: $150–$250 (per sport ($450 all-season package)) — optional
Sibling discount2nd student $17,680 ($4,420 off)$2,000/yr per sibling after the firstNot PublishedMulti-student assistance available (amount not published)
Lower school on campusHS onlyHS only
Yes

PK3–12

HS only
Open houseNot postedDec 6, 2026Nov 1, 2026Not posted
Required test
ISEE
ISEE

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

ISEE
In-house placement test
Application deadlineNot postedJan 15, 2027Not postedNot posted
Decision dateNot postedMar 5, 2027Not postedNot posted
Financial aid
Need-based + Merit
Need-based + Merit
Need-based + Merit
Need-based + Merit
AP coursesNot posted2120Not posted
Enrollment43279130080
Student:Teacher11.3:19:18.1:14.5:1
Mass
Weekly

Daily Mass also offered

Monthly
Not Published
Monthly
Sports13 sports12 sports12 sports13 sports
Links

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