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Cost & Financial Aid

Annual Tuition

  • St. Catherine's2,056,000 (2026-27 rate · 9th grade; grades 10-12: $20,753)
  • O'Connell910,000 (2025-26 rate (newest published))
  • Duchesne3,360,000 (2026-27 rate · Upper School)
  • Frassati2,405,000 (2026-27 rate)

Merit Scholarships

  • St. Catherine'sNot published
  • O'ConnellYes (Merit awards for academic performance + extracurricular involvement; parish/community scholarships; multi-student assistance)
  • DuchesneYes ($15,000/yr renewable: Janet Erskine Stuart (Catholic middle-schoolers), Madeleine Sophie Barat (continuing Duchesne 8th), Rose Philippine Duchesne (incoming 9th, other schools))
  • FrassatiNot published (Only need-based aid described)

Need-Based Financial Aid

  • 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.)
  • O'ConnellYes (Guardian Angel Scholarship (needs-based, volunteer component) via FACTS Grant & Aid; TEFA state accounts accepted)
  • DuchesneYes ($2M+ awarded annually to ~26% of students; Clarity portal)
  • FrassatiYes (28% of students receive aid; FACTS Grant & Aid opens Oct 7, 2026, due Jan 31, 2027; aid decisions independent of admission)

Sibling Discount

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

Payment Plans

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

Aid Award Notification

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

Included in Tuition

  • St. Catherine'sNot Published
  • O'ConnellNot Published
  • DuchesneNot 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
$20,560

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

$9,100

2025-26 rate (newest published)

$33,600

2026-27 rate · Upper School

$24,050

2026-27 rate

What's included
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
  • Registration fee: $450
  • Technology fee: $200
  • Sports fee: $150–$250 (per sport ($450 all-season package)) — optional
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
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 discount10% off for each younger siblingMulti-student assistance available (amount not published)Not Published$3,000 off 2nd student; $9,425 off 3rd (tuition only)
Lower school on campus
Yes

14 months–12th (Montessori)

HS only
Yes

PK3–12

HS only
Open houseNot postedNot postedNov 1, 2026Oct 28, 2026
Required test
None
In-house placement test
ISEE
HSPT or ISEE

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

Application deadlineJan 15, 2027Not postedNot postedNot posted
Decision dateMar 5, 2027Not postedNot postedNot posted
Financial aid
Need-based
Need-based + Merit
Need-based + Merit
Need-based
AP coursesNot postedNot posted20Not posted
Enrollment2380300364
Student:Teacher14.4:14.5:18.1:111:1
Mass
Monthly
Monthly
Not Published
Weekly

Thursdays, 9:15 AM

Sports6 sports13 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.