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Cost & Financial Aid

Annual Tuition

  • Duchesne3,360,000 (2026-27 rate · Upper School)
  • St. Agnes2,840,000 (2026-27 rate)
  • St. Peter CTHS1,500,000 (2026-27 rate · most families pay far less after aid)

Need-Based Financial Aid

  • DuchesneYes ($2M+ awarded annually to ~26% of students; Clarity portal)
  • St. AgnesYes (~20% of students receive aid; ~$2.95M/yr (2025-26). Blackbaud, school code 14060, $35 fee.)
  • St. Peter CTHSYes (95% of students aided (2025-26); approved TEFA provider (state accounts, from 2026-27))

Payment Plans

  • DuchesneFull (May 20) · 2-pay (May / Nov) · 12-month monthly
  • St. AgnesAnnual (Jul 1) · Semi-annual $13,950 × 2 (Jul 1 / Dec 1) · 10 monthly Jul–Apr (+4% deferral fee)
  • St. Peter CTHSMonthly (10 payments Jul-Apr) · By semester (Jul / Jan) · Annual (Jul)

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. AgnesNo (Explicit: aid is need-based only, regardless of talents)
  • St. Peter CTHSNot Published

Aid Award Notification

  • Duchesne2027-03-05 (Award acceptance Mar 24, 2027.)
  • St. AgnesNot Published
  • St. Peter CTHSNot Published
Commute from home
Tuition
$33,600

2026-27 rate · Upper School

$28,400

2026-27 rate

$15,000

2026-27 rate · most families pay far less after aid

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 see fees
  • Application fee: $75 ($125 for transfer applicants)
  • Enrollment deposit: $500
  • Tablet PC (technology): $1,725
  • AP test fee: $105 (per AP / Honors-AP class) — optional
  • Senior fee: $350 (seniors only) — optional
  • Athletics fee: $150 (per sport) — optional
Fees listed separately

No itemized fees published.

Sibling discountNot PublishedNot PublishedNot Published
Lower school on campus
Yes

PK3–12

HS onlyHS only
Open houseNov 1, 2026Not postedNot posted
Required test
ISEE
ISEE

Offered on campus: Nov 14, 2026

None
Application deadlineNot postedNot postedNot posted
Decision dateNot postedNot postedNot posted
Financial aid
Need-based + Merit
Need-based

No merit scholarships

Need-based
AP courses2025Not posted
Enrollment30093426
Student:Teacher8.1:19:1Not Published
MassNot Published
Weekly

Thursdays, 9:10 AM

Monthly
Sports12 sports12 sportsNot posted
Links

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