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Cost & Financial Aid

Annual Tuition

  • St. Catherine's2,056,000 (2026-27 rate · 9th grade; grades 10-12: $20,753)
  • St. Peter CTHS1,500,000 (2026-27 rate · most families pay far less after aid)
  • St. John XXIII2,210,000 (2026-27 rate)

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.)
  • St. Peter CTHSYes (95% of students aided (2025-26); approved TEFA provider (state accounts, from 2026-27))
  • St. John XXIIIYes (Clarity ($60 fee); aid families also apply for TEFA (doesn't reduce SJ23 aid) and complete 10-40 volunteer hours)

Merit Scholarships

  • St. Catherine'sNot published
  • St. Peter CTHSNot Published
  • St. John XXIIIYes (SJ23 Merit Scholarship for students demonstrating excellence)

Payment Plans

  • St. Catherine'sNot Published
  • St. Peter CTHSMonthly (10 payments Jul-Apr) · By semester (Jul / Jan) · Annual (Jul)
  • St. John XXIII1 payment (no fee) · 2 payments (+$100) · 10 payments May-Feb (+$200)

Sibling Discount

  • St. Catherine's10% off for each younger sibling
  • St. Peter CTHSNot Published
  • St. John XXIII2nd student $17,680 ($4,420 off)
Commute from home
Tuition
$20,560

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

$15,000

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

$22,100

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

No itemized fees published.

Fees listed separately see fees
  • New Student Enrollment Fee: $500
  • Financial aid application (Clarity): $60 — optional
Sibling discount10% off for each younger siblingNot Published2nd student $17,680 ($4,420 off)
Lower school on campus
Yes

14 months–12th (Montessori)

HS onlyHS only
Open houseNot postedNot postedNot posted
Required test
None
None
ISEE
Application deadlineJan 15, 2027Not postedNot posted
Decision dateMar 5, 2027Not postedNot posted
Financial aid
Need-based
Need-based
Need-based + Merit
AP coursesNot postedNot postedNot posted
Enrollment2326432
Student:Teacher14.4:1Not Published11.3:1
Mass
Monthly
Monthly
Weekly

Daily Mass also offered

Sports6 sportsNot posted13 sports
Links

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