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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.)
  • St. ThomasISEE (School code 571055; freshmen. Transfers: ISEE or PSAT.)
  • 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.)
  • DuchesneISEE (Administered externally; campus tour + family interview also required)

Recommendations

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

World Languages

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

Dual Credit

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

AP Courses

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

Learning Support

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

Academic Model

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

AP Program

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

Application Deadline

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

Family Interview

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

Honors Courses

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

Notable Programs

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

2026-27 rate

$27,900

2026-27 rate

$22,850

2026-27 rate

$33,600

2026-27 rate · Upper School

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

No itemized fees published.

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
Sibling discount2nd student $17,680 ($4,420 off)$2,000/yr per sibling after the firstNot PublishedNot Published
Lower school on campusHS onlyHS onlyHS only
Yes

PK3–12

Open houseNot postedDec 6, 2026Nov 7, 2026Nov 1, 2026
Required test
ISEE
ISEE

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

ISEE (or CLT for classical-school students)
ISEE
Application deadlineNot postedJan 15, 2027Jan 15, 2027Not posted
Decision dateNot postedMar 5, 2027Not postedNot posted
Financial aid
Need-based + Merit
Need-based + Merit
Need-based + Merit
Need-based + Merit
AP coursesNot posted21Not posted20
Enrollment432791Not Published300
Student:Teacher11.3:19:1Not Published8.1:1
Mass
Weekly

Daily Mass also offered

Monthly
Daily
Not Published
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.