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Cost & Financial Aid

Annual Tuition

  • St. Peter CTHS1,500,000 (2026-27 rate · most families pay far less after aid)
  • Frassati2,405,000 (2026-27 rate)
  • O'Connell910,000 (2025-26 rate (newest published))
  • 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))
  • FrassatiYes (28% of students receive aid; FACTS Grant & Aid opens Oct 7, 2026, due Jan 31, 2027; aid decisions independent of admission)
  • 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)

Merit Scholarships

  • St. Peter CTHSNot Published
  • FrassatiNot published (Only need-based aid described)
  • 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))

Payment Plans

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

Sibling Discount

  • St. Peter CTHSNot Published
  • Frassati$3,000 off 2nd student; $9,425 off 3rd (tuition only)
  • O'ConnellMulti-student assistance available (amount not published)
  • DuchesneNot Published

Aid Award Notification

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

Included in Tuition

  • St. Peter CTHSNot Published
  • FrassatiTechnology fee ($500) · Registration ($300) · Student activities ($400) · Textbooks ($650) (The $24,050 figure is tuition + these $1,850 general fees combined)
  • O'ConnellNot Published
  • DuchesneNot Published
Commute from home
Tuition
$15,000

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

$24,050

2026-27 rate

$9,100

2025-26 rate (newest published)

$33,600

2026-27 rate · Upper School

What's included
Fees listed separately

No itemized fees published.

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
  • 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
Sibling discountNot Published$3,000 off 2nd student; $9,425 off 3rd (tuition only)Multi-student assistance available (amount not published)Not Published
Lower school on campusHS onlyHS onlyHS only
Yes

PK3–12

Open houseNot postedOct 28, 2026Not postedNov 1, 2026
Required test
None
HSPT or ISEE

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

In-house placement test
ISEE
Application deadlineNot postedNot postedNot postedNot posted
Decision dateNot postedNot postedNot postedNot posted
Financial aid
Need-based
Need-based
Need-based + Merit
Need-based + Merit
AP coursesNot postedNot postedNot posted20
Enrollment2636480300
Student:TeacherNot Published11:14.5:18.1:1
Mass
Monthly
Weekly

Thursdays, 9:15 AM

Monthly
Not Published
SportsNot posted13 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.