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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)
  • Frassati2,405,000 (2026-27 rate)

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

Merit Scholarships

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

Payment Plans

  • St. Peter CTHSMonthly (10 payments Jul-Apr) · By semester (Jul / Jan) · Annual (Jul)
  • St. Catherine'sNot Published
  • FrassatiAnnual (Jun, 2% discount) · Semi-annual (Jul 1 / Dec 1) · 10 monthly Jul-Apr (FACTS fees apply)

Sibling Discount

  • St. Peter CTHSNot Published
  • St. Catherine's10% off for each younger sibling
  • Frassati$3,000 off 2nd student; $9,425 off 3rd (tuition only)

Included in Tuition

  • St. Peter CTHSNot 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
$15,000

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

$20,560

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

$24,050

2026-27 rate

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
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 Published10% off for each younger sibling$3,000 off 2nd student; $9,425 off 3rd (tuition only)
Lower school on campusHS only
Yes

14 months–12th (Montessori)

HS only
Open houseNot postedNot postedOct 28, 2026
Required test
None
None
HSPT or ISEE

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

Application deadlineNot postedJan 15, 2027Not posted
Decision dateNot postedMar 5, 2027Not posted
Financial aid
Need-based
Need-based
Need-based
AP coursesNot postedNot postedNot posted
Enrollment2623364
Student:TeacherNot Published14.4:111:1
Mass
Monthly
Monthly
Weekly

Thursdays, 9:15 AM

SportsNot posted6 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.