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Academics

Entrance Exam

  • DuchesneISEE (Administered externally; campus tour + family interview also required)
  • St. AgnesISEE (School code 443420; up to 2 scores; first attempt before Dec 1 (ERB rule))
  • CathedralISEE (or CLT for classical-school students) (Scores due Jan 30, 2027. Application opens first week of Sept 2026, due Jan 15, 2027. A family interview is required (parents + student); a shadow day can be requested at the interview.)

Recommendations

  • DuchesneEnglish and/or Math teacher + principal/head of school; 2 years transcripts
  • St. AgnesEnglish + Math teachers (due Jan 14, 2027)
  • CathedralMath, English + Administrator (HAIS forms); transcripts 3 prior years; student essay

AP Courses

  • Duchesne20 (AP enrollment caps: soph 1 / jr 2 / sr 3; AP exam required if enrolled)
  • St. Agnes25
  • CathedralNot Published

Dual Credit

  • DuchesneYes (University of St. Thomas partnership; online electives via SophieConnect + One Schoolhouse)
  • St. AgnesNot Published
  • CathedralYes (University of St. Thomas partnership (est. June 2023))

Honors Courses

  • Duchesne12 (Called "Advanced" courses)
  • St. Agnes12
  • CathedralNot Published

World Languages

  • DuchesneFrench (incl. Advanced IV-DELF B1) · Spanish (incl. AP) · American Sign Language I-III
  • St. AgnesNot Published
  • CathedralLatin I-IV · Greek I-II · Modern language elective (Years 3-4)

Academic Model

  • DuchesneNot Published
  • St. AgnesNot Published
  • CathedralClassical liberal arts — Trivium (Grammar/Logic/Rhetoric), Shakespeare every year, Junior Thesis, Senior Seminar + Senior Rome Trip. Four Pillars: Sacred Worship, Wisdom, Music, Art. (No AP courses are advertised; dual credit serves the advanced-coursework role.)

AP Exams Scored 3+

  • DuchesneNot Published
  • St. Agnes97 (% of AP exams scored 3+)
  • CathedralNot Published

Family Interview

  • DuchesneNot Published
  • St. AgnesNot Published
  • CathedralYes (Family interview at the school — parents and student)

Language Credits Required

  • DuchesneNot Published
  • St. Agnes2
  • CathedralNot Published

Learning Support

  • DuchesneNot Published
  • St. AgnesNot Published
  • CathedralLearning Enrichment Center — an individual learning plan for every student; tutoring, accommodations and testing support

Notable Programs

  • DuchesneRobotics and competitive debate programs; IT internship with Microsoft certification; junior Research Paper requirement
  • St. AgnesNot Published
  • CathedralNot Published

Robotics

  • DuchesneNot Published
  • St. AgnesSpectrum 3847 — 12 consecutive FIRST Championship appearances
  • CathedralNot Published

Test Score Deadline

  • DuchesneNot Published
  • St. Agnes2027-02-01
  • CathedralNot Published
Commute from home
Tuition
$33,600

2026-27 rate · Upper School

$28,400

2026-27 rate

$22,850

2026-27 rate

What's included
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
Fees listed separately see fees
  • Application fee: $75 ($125 for transfer applicants)
  • Enrollment deposit: $500
  • Tablet PC (technology): $1,725
  • AP test fee: $105 (per AP / Honors-AP class) — optional
  • Senior fee: $350 (seniors only) — optional
  • Athletics fee: $150 (per sport) — optional
Fees listed separately

No itemized fees published.

Sibling discountNot PublishedNot PublishedNot Published
Lower school on campus
Yes

PK3–12

HS onlyHS only
Open houseNov 1, 2026Not postedNov 7, 2026
Required test
ISEE
ISEE

Offered on campus: Nov 14, 2026

ISEE (or CLT for classical-school students)
Application deadlineNot postedNot postedJan 15, 2027
Decision dateNot postedNot postedNot posted
Financial aid
Need-based + Merit
Need-based

No merit scholarships

Need-based + Merit
AP courses2025Not posted
Enrollment300934Not Published
Student:Teacher8.1:19:1Not Published
MassNot Published
Weekly

Thursdays, 9:10 AM

Daily
Sports12 sports12 sports11 sports
Links

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