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Academics

Entrance Exam

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

Recommendations

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

Dual Credit

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

World Languages

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

AP Courses

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

Learning Support

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

Notable Programs

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

AP Program

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

Application Deadline

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

Honors & AP Courses

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

Honors Courses

  • St. ThomasNot Published
  • Duchesne12 (Called "Advanced" courses)
  • St. John XXIIINot Published
  • St. Pius XNot Published
Commute from home
Tuition
$27,900

2026-27 rate

$33,600

2026-27 rate · Upper School

$22,100

2026-27 rate

$22,850

2026-27 rate

What's included
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 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
  • 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
Sibling discount$2,000/yr per sibling after the firstNot Published2nd student $17,680 ($4,420 off)Half tuition for a 3rd concurrently enrolled child
Lower school on campusHS only
Yes

PK3–12

HS onlyHS only
Open houseDec 6, 2026Nov 1, 2026Not postedNot posted
Required test
ISEE

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

ISEE
ISEE
ISEE
Application deadlineJan 15, 2027Not postedNot postedNot posted
Decision dateMar 5, 2027Not postedNot postedNot posted
Financial aid
Need-based + Merit
Need-based + Merit
Need-based + Merit
Need-based + Merit
AP courses2120Not postedNot posted
Enrollment791300432655
Student:Teacher9:18.1:111.3:17:1
Mass
Monthly
Not Published
Weekly

Daily Mass also offered

Monthly
Sports12 sports12 sports13 sports14 sports
Links

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