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Cost & Financial Aid

Annual Tuition

  • Duchesne3,360,000 (2026-27 rate · Upper School)
  • St. Catherine's2,056,000 (2026-27 rate · 9th grade; grades 10-12: $20,753)
  • St. Agnes2,840,000 (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. Catherine'sNot published
  • St. AgnesNo (Explicit: aid is need-based only, regardless of talents)

Need-Based Financial Aid

  • DuchesneYes ($2M+ awarded annually to ~26% of students; Clarity portal)
  • St. Catherine'sYes (FACTS (Archdiocese form auto-applies to SCM's own program); opens Dec, due Mar. TEFA participant, but may reduce school aid when TEFA funds received.)
  • St. AgnesYes (~20% of students receive aid; ~$2.95M/yr (2025-26). Blackbaud, school code 14060, $35 fee.)

Payment Plans

  • DuchesneFull (May 20) · 2-pay (May / Nov) · 12-month monthly
  • St. Catherine'sNot Published
  • St. AgnesAnnual (Jul 1) · Semi-annual $13,950 × 2 (Jul 1 / Dec 1) · 10 monthly Jul–Apr (+4% deferral fee)

Aid Award Notification

  • Duchesne2027-03-05 (Award acceptance Mar 24, 2027.)
  • St. Catherine'sNot Published
  • St. AgnesNot Published

Sibling Discount

  • DuchesneNot Published
  • St. Catherine's10% off for each younger sibling
  • St. AgnesNot Published
Commute from home
Tuition
$33,600

2026-27 rate · Upper School

$20,560

2026-27 rate · 9th grade; grades 10-12: $20,753

$28,400

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 see fees
  • Application fee: $150
  • Tuition deposit: $750
  • New Student Fee: $850
  • Facility fee: $800
  • Program fee: $2,500–$2,750
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
Sibling discountNot Published10% off for each younger siblingNot Published
Lower school on campus
Yes

PK3–12

Yes

14 months–12th (Montessori)

HS only
Open houseNov 1, 2026Not postedNot posted
Required test
ISEE
None
ISEE

Offered on campus: Nov 14, 2026

Application deadlineNot postedJan 15, 2027Not posted
Decision dateNot postedMar 5, 2027Not posted
Financial aid
Need-based + Merit
Need-based
Need-based

No merit scholarships

AP courses20Not posted25
Enrollment30023934
Student:Teacher8.1:114.4:19:1
MassNot Published
Monthly
Weekly

Thursdays, 9:10 AM

Sports12 sports6 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.