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Cost & Financial Aid

Annual Tuition

  • St. Thomas2,790,000 (2026-27 rate)
  • Incarnate Word2,280,000 (2026-27 rate)
  • Duchesne3,360,000 (2026-27 rate · Upper School)
  • O'Connell910,000 (2025-26 rate (newest published))

Merit Scholarships

  • 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.)
  • Incarnate WordYes (Average merit $5,000. Named: Jeanne de Matel ($8,000 renewable), Bishop McCarthy ($1,500), Bishop Rizzotto ($1,500))
  • 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. ThomasYes (~1/3 of students aided; $2.7M+/yr; awards 10-95% of tuition; Blackbaud; deadline Jan 15, 2027; awards mid-March)
  • Incarnate WordYes (Average aid package $9,000; Blackbaud; apply by Dec 15. Aid recipients complete service hours (Service Study Program). Participates in TEFA.)
  • 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)

Payment Plans

  • St. ThomasNot Published
  • Incarnate Word1-pay (Jul 1) · 2-pay (Jul 1 / Dec 1) · 10 monthly Jul-Apr (+2% fee)
  • DuchesneFull (May 20) · 2-pay (May / Nov) · 12-month monthly
  • O'ConnellNot Published

Sibling Discount

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

Aid Award Notification

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

Included in Tuition

  • St. ThomasLaptop & technology
  • Incarnate WordNot Published
  • DuchesneNot Published
  • O'ConnellNot Published
Commute from home
Tuition
$27,900

2026-27 rate

$22,800

2026-27 rate

$33,600

2026-27 rate · Upper School

$9,100

2025-26 rate (newest published)

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
Fees listed separately see fees
  • Application fee: $75
  • Registration fee: $350
  • Tuition deposit: $500
  • Freshman fee (orientation camp): $350 (freshmen)
  • Senior fee (graduation + retreat): $300 (seniors)
  • Books:
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 discount$2,000/yr per sibling after the firstNot PublishedNot PublishedMulti-student assistance available (amount not published)
Lower school on campusHS onlyHS only
Yes

PK3–12

HS only
Open houseDec 6, 2026Nov 8, 2026Nov 1, 2026Not posted
Required test
ISEE

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

ISEE

Offered on campus: Jan 9, 2027

ISEE
In-house placement test
Application deadlineJan 15, 2027Dec 14, 2026Not postedNot posted
Decision dateMar 5, 2027Mar 5, 2027Not postedNot posted
Financial aid
Need-based + Merit
Need-based + Merit
Need-based + Merit
Need-based + Merit
AP courses211820Not posted
Enrollment79124830080
Student:Teacher9:18.3:18.1:14.5:1
Mass
Monthly
Monthly
Not Published
Monthly
Sports12 sports10 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.