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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)
  • St. Catherine's2,056,000 (2026-27 rate · 9th grade; grades 10-12: $20,753)

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)
  • 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.)

Merit Scholarships

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

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)
  • St. Catherine'sNot Published

Sibling Discount

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

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)
  • St. Catherine'sNot Published
Commute from home
Tuition
$15,000

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

$24,050

2026-27 rate

$20,560

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

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
  • Application fee: $150
  • Tuition deposit: $750
  • New Student Fee: $850
  • Facility fee: $800
  • Program fee: $2,500–$2,750
Sibling discountNot Published$3,000 off 2nd student; $9,425 off 3rd (tuition only)10% off for each younger sibling
Lower school on campusHS onlyHS only
Yes

14 months–12th (Montessori)

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

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

None
Application deadlineNot postedNot postedJan 15, 2027
Decision dateNot postedNot postedMar 5, 2027
Financial aid
Need-based
Need-based
Need-based
AP coursesNot postedNot postedNot posted
Enrollment2636423
Student:TeacherNot Published11:114.4:1
Mass
Monthly
Weekly

Thursdays, 9:15 AM

Monthly
SportsNot posted13 sports6 sports
Links

“Not posted” means the school hasn’t published it yet for this admissions cycle — check each school’s full profile for sources.