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Cost & Financial Aid

Annual Tuition

  • St. Peter CTHS1,500,000 (2026-27 rate · most families pay far less after aid)
  • St. Catherine's2,056,000 (2026-27 rate · 9th grade; grades 10-12: $20,753)
  • Duchesne3,360,000 (2026-27 rate · Upper School)

Need-Based Financial Aid

  • St. Peter CTHSYes (95% of students aided (2025-26); approved TEFA provider (state accounts, from 2026-27))
  • 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.)
  • DuchesneYes ($2M+ awarded annually to ~26% of students; Clarity portal)

Merit Scholarships

  • St. Peter CTHSNot Published
  • St. Catherine'sNot published
  • DuchesneYes ($15,000/yr renewable: Janet Erskine Stuart (Catholic middle-schoolers), Madeleine Sophie Barat (continuing Duchesne 8th), Rose Philippine Duchesne (incoming 9th, other schools))

Payment Plans

  • St. Peter CTHSMonthly (10 payments Jul-Apr) · By semester (Jul / Jan) · Annual (Jul)
  • St. Catherine'sNot Published
  • DuchesneFull (May 20) · 2-pay (May / Nov) · 12-month monthly

Aid Award Notification

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

Sibling Discount

  • St. Peter CTHSNot Published
  • St. Catherine's10% off for each younger sibling
  • DuchesneNot Published
Commute from home
Tuition
$15,000

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

$20,560

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

$33,600

2026-27 rate · Upper School

What's included
Fees listed separately

No itemized fees published.

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
  • 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
Sibling discountNot Published10% off for each younger siblingNot Published
Lower school on campusHS only
Yes

14 months–12th (Montessori)

Yes

PK3–12

Open houseNot postedNot postedNov 1, 2026
Required test
None
None
ISEE
Application deadlineNot postedJan 15, 2027Not posted
Decision dateNot postedMar 5, 2027Not posted
Financial aid
Need-based
Need-based
Need-based + Merit
AP coursesNot postedNot posted20
Enrollment2623300
Student:TeacherNot Published14.4:18.1:1
Mass
Monthly
Monthly
Not Published
SportsNot posted6 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.