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Cost & Financial Aid

Annual Tuition

  • Duchesne3,360,000 (2026-27 rate · Upper School)
  • O'Connell910,000 (2025-26 rate (newest published))
  • St. Catherine's2,056,000 (2026-27 rate · 9th grade; grades 10-12: $20,753)
  • Frassati2,405,000 (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))
  • O'ConnellYes (Merit awards for academic performance + extracurricular involvement; parish/community scholarships; multi-student assistance)
  • St. Catherine'sNot published
  • FrassatiNot published (Only need-based aid described)

Need-Based Financial Aid

  • 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)
  • 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.)
  • FrassatiYes (28% of students receive aid; FACTS Grant & Aid opens Oct 7, 2026, due Jan 31, 2027; aid decisions independent of admission)

Sibling Discount

  • DuchesneNot Published
  • O'ConnellMulti-student assistance available (amount not published)
  • St. Catherine's10% off for each younger sibling
  • Frassati$3,000 off 2nd student; $9,425 off 3rd (tuition only)

Payment Plans

  • DuchesneFull (May 20) · 2-pay (May / Nov) · 12-month monthly
  • O'ConnellNot Published
  • St. Catherine'sNot Published
  • FrassatiAnnual (Jun, 2% discount) · Semi-annual (Jul 1 / Dec 1) · 10 monthly Jul-Apr (FACTS fees apply)

Aid Award Notification

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

Included in Tuition

  • DuchesneNot Published
  • O'ConnellNot Published
  • St. Catherine'sNot Published
  • FrassatiTechnology fee ($500) · Registration ($300) · Student activities ($400) · Textbooks ($650) (The $24,050 figure is tuition + these $1,850 general fees combined)
Commute from home
Tuition
$33,600

2026-27 rate · Upper School

$9,100

2025-26 rate (newest published)

$20,560

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

$24,050

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
  • Registration fee: $450
  • Technology fee: $200
  • Sports fee: $150–$250 (per sport ($450 all-season package)) — 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
Included in tuition see list
  • Technology fee ($500)
  • Registration ($300)
  • Student activities ($400)
  • Textbooks ($650)

Charged separately:

  • Application fee: $75–$125
  • Enrollment deposit (new families): $700
  • Athletics & Fine Arts fee: $250 (per sport/season) — optional
Sibling discountNot PublishedMulti-student assistance available (amount not published)10% off for each younger sibling$3,000 off 2nd student; $9,425 off 3rd (tuition only)
Lower school on campus
Yes

PK3–12

HS only
Yes

14 months–12th (Montessori)

HS only
Open houseNov 1, 2026Not postedNot postedOct 28, 2026
Required test
ISEE
In-house placement test
None
HSPT or ISEE

Offered on campus: Jan 9, 2027 · Jan 23, 2027

Application deadlineNot postedNot postedJan 15, 2027Not posted
Decision dateNot postedNot postedMar 5, 2027Not posted
Financial aid
Need-based + Merit
Need-based + Merit
Need-based
Need-based
AP courses20Not postedNot postedNot posted
Enrollment3008023364
Student:Teacher8.1:14.5:114.4:111:1
MassNot Published
Monthly
Monthly
Weekly

Thursdays, 9:15 AM

Sports12 sports13 sports6 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.