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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))
  • St. Peter CTHS1,500,000 (2026-27 rate · most families pay far less after aid)

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)
  • St. Peter CTHSYes (95% of students aided (2025-26); approved TEFA provider (state accounts, from 2026-27))

Merit Scholarships

  • St. Catherine'sNot published
  • O'ConnellYes (Merit awards for academic performance + extracurricular involvement; parish/community scholarships; multi-student assistance)
  • St. Peter CTHSNot Published

Sibling Discount

  • St. Catherine's10% off for each younger sibling
  • O'ConnellMulti-student assistance available (amount not published)
  • St. Peter CTHSNot Published

Payment Plans

  • St. Catherine'sNot Published
  • O'ConnellNot Published
  • St. Peter CTHSMonthly (10 payments Jul-Apr) · By semester (Jul / Jan) · Annual (Jul)
Commute from home
Tuition
$20,560

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

$9,100

2025-26 rate (newest published)

$15,000

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

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
Fees listed separately

No itemized fees published.

Sibling discount10% off for each younger siblingMulti-student assistance available (amount not published)Not Published
Lower school on campus
Yes

14 months–12th (Montessori)

HS onlyHS only
Open houseNot postedNot postedNot posted
Required test
None
In-house placement test
None
Application deadlineJan 15, 2027Not postedNot posted
Decision dateMar 5, 2027Not postedNot posted
Financial aid
Need-based
Need-based + Merit
Need-based
AP coursesNot postedNot postedNot posted
Enrollment238026
Student:Teacher14.4:14.5:1Not Published
Mass
Monthly
Monthly
Monthly
Sports6 sports13 sportsNot posted
Links

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