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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. Pius XISEE (School code 571082; 9th-grade applicants. Transfers submit PSAT/SAT/ACT. School offers an ISEE prep course. Application opens Sept 1.)
  • DuchesneISEE (Administered externally; campus tour + family interview also required)
  • St. ThomasISEE (School code 571055; freshmen. Transfers: ISEE or PSAT.)

Recommendations

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

Dual Credit

  • St. John XXIIINot Published
  • St. Pius XYes (Via college partnerships (institutions not named))
  • DuchesneYes (University of St. Thomas partnership; online electives via SophieConnect + One Schoolhouse)
  • St. ThomasYes (4 dual-credit courses via University of St. Thomas)

World Languages

  • St. John XXIIISpanish (confirmed via Spanish NHS; full list not published)
  • St. Pius XNot Published
  • DuchesneFrench (incl. Advanced IV-DELF B1) · Spanish (incl. AP) · American Sign Language I-III
  • St. ThomasFrench · Spanish · Mandarin · Latin

AP Courses

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

Learning Support

  • St. John XXIIINot Published
  • St. Pius XPaul A. Gilliam '98 Learning for Success program — structured academic support ($2,500/yr)
  • DuchesneNot Published
  • St. ThomasLearning Enrichment Center; college counseling with 4-year plan

Notable Programs

  • St. John XXIIINot Published
  • St. Pius X"Engineer Your World I & II," Computer Science; electives in Business, Law, Psychology, Media Arts
  • DuchesneRobotics and competitive debate programs; IT internship with Microsoft certification; junior Research Paper requirement
  • St. ThomasNot Published

AP Program

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

Application Deadline

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

Honors & AP Courses

  • St. John XXIIINot Published
  • St. Pius X25 (Honors/AP combined; 490 AP exams, 49 AP Scholars in 2025)
  • DuchesneNot Published
  • St. ThomasNot Published

Honors Courses

  • St. John XXIIINot Published
  • St. Pius XNot Published
  • Duchesne12 (Called "Advanced" courses)
  • St. ThomasNot Published
Commute from home
Tuition
$22,100

2026-27 rate

$22,850

2026-27 rate

$33,600

2026-27 rate · Upper School

$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
  • Registration fee (new students): $350
  • Graduation fee (seniors): $280 (seniors)
  • Athletics fee: $150–$350 (per sport) — optional
  • Learning for Success program: $2,500 (if enrolled in program) — optional
  • Bus transportation: $1,550 — 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
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)Half tuition for a 3rd concurrently enrolled childNot Published$2,000/yr per sibling after the first
Lower school on campusHS onlyHS only
Yes

PK3–12

HS only
Open houseNot postedNot postedNov 1, 2026Dec 6, 2026
Required test
ISEE
ISEE
ISEE
ISEE

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

Application deadlineNot postedNot postedNot postedJan 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 postedNot posted2021
Enrollment432655300791
Student:Teacher11.3:17:18.1:19:1
Mass
Weekly

Daily Mass also offered

Monthly
Not Published
Monthly
Sports13 sports14 sports12 sports12 sports
Links

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