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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))
  • Frassati2,405,000 (2026-27 rate)
  • Duchesne3,360,000 (2026-27 rate · Upper School)

Merit Scholarships

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

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)
  • FrassatiYes (28% of students receive aid; FACTS Grant & Aid opens Oct 7, 2026, due Jan 31, 2027; aid decisions independent of admission)
  • DuchesneYes ($2M+ awarded annually to ~26% of students; Clarity portal)

Sibling Discount

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

Payment Plans

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

Aid Award Notification

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

Included in Tuition

  • St. Catherine'sNot Published
  • O'ConnellNot Published
  • FrassatiTechnology fee ($500) · Registration ($300) · Student activities ($400) · Textbooks ($650) (The $24,050 figure is tuition + these $1,850 general fees combined)
  • DuchesneNot Published
Commute from home
Tuition
$20,560

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

$9,100

2025-26 rate (newest published)

$24,050

2026-27 rate

$33,600

2026-27 rate · Upper School

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
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
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 discount10% off for each younger siblingMulti-student assistance available (amount not published)$3,000 off 2nd student; $9,425 off 3rd (tuition only)Not Published
Lower school on campus
Yes

14 months–12th (Montessori)

HS onlyHS only
Yes

PK3–12

Open houseNot postedNot postedOct 28, 2026Nov 1, 2026
Required test
None
In-house placement test
HSPT or ISEE

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

ISEE
Application deadlineJan 15, 2027Not postedNot postedNot posted
Decision dateMar 5, 2027Not postedNot postedNot posted
Financial aid
Need-based
Need-based + Merit
Need-based
Need-based + Merit
AP coursesNot postedNot postedNot posted20
Enrollment2380364300
Student:Teacher14.4:14.5:111:18.1:1
Mass
Monthly
Monthly
Weekly

Thursdays, 9:15 AM

Not Published
Sports6 sports13 sports13 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.