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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.)
  • O'ConnellIn-house placement test (No ISEE/HSPT — 30-60 min Math & Reading placement test, offered Mon-Thu 8:30-2:30. Rolling admissions, no published deadlines.)
  • 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)

World Languages

  • St. John XXIIISpanish (confirmed via Spanish NHS; full list not published)
  • O'ConnellSpanish I-III · German (IV dual credit) · American Sign Language I-III
  • 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
  • O'ConnellYes (Via Galveston College: English III/IV, US History, Government, Spanish I/II, German IV (TSI test required))
  • CathedralYes (University of St. Thomas partnership (est. June 2023))
  • DuchesneYes (University of St. Thomas partnership; online electives via SophieConnect + One Schoolhouse)

Recommendations

  • St. John XXIIITeacher recommendations (school forms) + official transcripts; interviews for transfers only
  • O'ConnellNot Published
  • CathedralMath, English + Administrator (HAIS forms); transcripts 3 prior years; student essay
  • DuchesneEnglish and/or Math teacher + principal/head of school; 2 years transcripts

AP Courses

  • St. John XXIIINot Published
  • O'Connell3 (Confirmed via school event calendar: AP Calculus, AP Physics 1, AP Physics C. Not on an academics/curriculum page — count may be incomplete.)
  • CathedralNot Published
  • Duchesne20 (AP enrollment caps: soph 1 / jr 2 / sr 3; AP exam required if enrolled)

Notable Programs

  • St. John XXIIINot Published
  • O'ConnellSTEAM electives: Robotics, Computer Science, Esports, Horticulture, Graphic Design; Honors Engineering I & II; A La Carte program for homeschoolers
  • CathedralNot Published
  • DuchesneRobotics and competitive debate programs; IT internship with Microsoft certification; junior Research Paper requirement

Academic Model

  • St. John XXIIINot Published
  • O'ConnellNot 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)
  • O'ConnellNot Published
  • CathedralNot Published
  • DuchesneNot Published

Family Interview

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

Honors Courses

  • St. John XXIIINot Published
  • O'ConnellNot Published
  • CathedralNot Published
  • Duchesne12 (Called "Advanced" courses)

Learning Support

  • St. John XXIIINot Published
  • O'ConnellNot Published
  • CathedralLearning Enrichment Center — an individual learning plan for every student; tutoring, accommodations and testing support
  • DuchesneNot Published
Commute from home
Tuition
$22,100

2026-27 rate

$9,100

2025-26 rate (newest published)

$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
Fees listed separately see fees
  • Registration fee: $450
  • Technology fee: $200
  • Sports fee: $150–$250 (per sport ($450 all-season package)) — 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)Multi-student assistance available (amount not published)Not PublishedNot Published
Lower school on campusHS onlyHS onlyHS only
Yes

PK3–12

Open houseNot postedNot postedNov 7, 2026Nov 1, 2026
Required test
ISEE
In-house placement test
ISEE (or CLT for classical-school students)
ISEE
Application deadlineNot postedNot postedJan 15, 2027Not posted
Decision dateNot postedNot postedNot postedNot posted
Financial aid
Need-based + Merit
Need-based + Merit
Need-based + Merit
Need-based + Merit
AP coursesNot posted3Not posted20
Enrollment43280Not Published300
Student:Teacher11.3:14.5:1Not Published8.1:1
Mass
Weekly

Daily Mass also offered

Monthly
Daily
Not Published
Sports13 sports13 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.