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Academics

Entrance Exam

  • St. John XXIIIISEE (School code 570048; 9th grade. 11th/12th transfers submit PSAT. Last cycle: opened Sept 1, deadline Jan 15, docs Jan 31, rolling after.)
  • DuchesneISEE (Administered externally; campus tour + family interview also required)
  • 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.)
  • St. ThomasISEE (School code 571055; freshmen. Transfers: ISEE or PSAT.)

Recommendations

  • St. John XXIIITeacher recommendations (school forms) + official transcripts; interviews for transfers only
  • DuchesneEnglish and/or Math teacher + principal/head of school; 2 years transcripts
  • CathedralMath, English + Administrator (HAIS forms); transcripts 3 prior years; student essay
  • St. ThomasMath + English teachers (HAIS forms, after Dec 1); student statement + resume; report cards gr 6-8

World Languages

  • St. John XXIIISpanish (confirmed via Spanish NHS; full list not published)
  • DuchesneFrench (incl. Advanced IV-DELF B1) · Spanish (incl. AP) · American Sign Language I-III
  • CathedralLatin I-IV · Greek I-II · Modern language elective (Years 3-4)
  • St. ThomasFrench · Spanish · Mandarin · Latin

Dual Credit

  • St. John XXIIINot Published
  • DuchesneYes (University of St. Thomas partnership; online electives via SophieConnect + One Schoolhouse)
  • CathedralYes (University of St. Thomas partnership (est. June 2023))
  • St. ThomasYes (4 dual-credit courses via University of St. Thomas)

AP Courses

  • St. John XXIIINot Published
  • Duchesne20 (AP enrollment caps: soph 1 / jr 2 / sr 3; AP exam required if enrolled)
  • CathedralNot Published
  • St. Thomas21 (40+ advanced/AP courses overall)

Learning Support

  • St. John XXIIINot Published
  • DuchesneNot Published
  • CathedralLearning Enrichment Center — an individual learning plan for every student; tutoring, accommodations and testing support
  • St. ThomasLearning Enrichment Center; college counseling with 4-year plan

Academic Model

  • St. John XXIIINot Published
  • DuchesneNot 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.)
  • St. ThomasNot Published

AP Program

  • St. John XXIIIAP and honors coursework offered (count not published; Course Selection Guide not public)
  • DuchesneNot Published
  • CathedralNot Published
  • St. ThomasNot Published

Application Deadline

  • St. John XXIIINot Published
  • DuchesneNot Published
  • CathedralNot Published
  • St. Thomas2027-01-15 (Opens Aug 3, 2026; supporting docs due Jan 31; rolling after)

Family Interview

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

Honors Courses

  • St. John XXIIINot Published
  • Duchesne12 (Called "Advanced" courses)
  • CathedralNot Published
  • St. ThomasNot Published

Notable Programs

  • St. John XXIIINot Published
  • DuchesneRobotics and competitive debate programs; IT internship with Microsoft certification; junior Research Paper requirement
  • CathedralNot Published
  • St. ThomasNot Published
Commute from home
Tuition
$22,100

2026-27 rate

$33,600

2026-27 rate · Upper School

$22,850

2026-27 rate

$27,900

2026-27 rate

What's included
Fees listed separately see fees
  • New Student Enrollment Fee: $500
  • Financial aid application (Clarity): $60 — optional
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

No itemized fees published.

Included in tuition see list
  • Laptop & technology

Charged separately:

  • Application fee: $75
  • Registration fee: $700
  • Camp Aquinas (freshman retreat): $650 (freshmen)
  • Class retreat: $325 (returning/transfer students)
  • Books: $550
  • Athletics fee: $250 (per sport) — optional
  • AP exam: $99 (per course) — optional
Sibling discount2nd student $17,680 ($4,420 off)Not PublishedNot Published$2,000/yr per sibling after the first
Lower school on campusHS only
Yes

PK3–12

HS onlyHS only
Open houseNot postedNov 1, 2026Nov 7, 2026Dec 6, 2026
Required test
ISEE
ISEE
ISEE (or CLT for classical-school students)
ISEE

Offered on campus: Nov 14, 2026 · Jan 9, 2027

Application deadlineNot postedNot postedJan 15, 2027Jan 15, 2027
Decision dateNot postedNot postedNot postedMar 5, 2027
Financial aid
Need-based + Merit
Need-based + Merit
Need-based + Merit
Need-based + Merit
AP coursesNot posted20Not posted21
Enrollment432300Not Published791
Student:Teacher11.3:18.1:1Not Published9:1
Mass
Weekly

Daily Mass also offered

Not Published
Daily
Monthly
Sports13 sports12 sports11 sports12 sports
Links

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