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Academics

Dual Credit

  • CathedralYes (University of St. Thomas partnership (est. June 2023))
  • St. Peter CTHSYes (Houston Community College partnership — pathway courses at St. Peter and two HCC campuses; school provides transport during the school day)
  • O'ConnellYes (Via Galveston College: English III/IV, US History, Government, Spanish I/II, German IV (TSI test required))
  • DuchesneYes (University of St. Thomas partnership; online electives via SophieConnect + One Schoolhouse)

Entrance Exam

  • 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. Peter CTHSNone (No ISEE/HSPT. Inquiry → tour → FACTS application; English + Math recommendations + transcript. Last cycle: due Jan 15, decisions Mar 6, reply Mar 25.)
  • 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.)
  • DuchesneISEE (Administered externally; campus tour + family interview also required)

World Languages

  • CathedralLatin I-IV · Greek I-II · Modern language elective (Years 3-4)
  • St. Peter CTHSNot Published
  • O'ConnellSpanish I-III · German (IV dual credit) · American Sign Language I-III
  • DuchesneFrench (incl. Advanced IV-DELF B1) · Spanish (incl. AP) · American Sign Language I-III

Notable Programs

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

Recommendations

  • CathedralMath, English + Administrator (HAIS forms); transcripts 3 prior years; student essay
  • St. Peter CTHSNot Published
  • O'ConnellNot Published
  • DuchesneEnglish and/or Math teacher + principal/head of school; 2 years transcripts

Academic Model

  • 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. Peter CTHSNot Published
  • O'ConnellNot Published
  • DuchesneNot Published

AP Courses

  • CathedralNot Published
  • St. Peter CTHSNot Published
  • O'ConnellNot Published
  • Duchesne20 (AP enrollment caps: soph 1 / jr 2 / sr 3; AP exam required if enrolled)

Career & Technical Pathways

  • CathedralNot Published
  • St. Peter CTHSBusiness · Construction · Education · Information Technology · Health Sciences (The school describes itself as the first Catholic career and technical high school in Texas, and the second in the United States. Graduates earn a diploma plus a Level 1 industry certification, with a possible HCC associate degree and job placement with partner businesses.)
  • O'ConnellNot Published
  • DuchesneNot Published

Family Interview

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

Honors Courses

  • CathedralNot Published
  • St. Peter CTHSNot Published
  • O'ConnellNot Published
  • Duchesne12 (Called "Advanced" courses)

Learning Support

  • CathedralLearning Enrichment Center — an individual learning plan for every student; tutoring, accommodations and testing support
  • St. Peter CTHSNot Published
  • O'ConnellNot Published
  • DuchesneNot Published
Commute from home
Tuition
$22,850

2026-27 rate

$15,000

2026-27 rate · most families pay far less after aid

$9,100

2025-26 rate (newest published)

$33,600

2026-27 rate · Upper School

What's included
Fees listed separately

No itemized fees published.

Fees listed separately

No itemized fees published.

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 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 discountNot PublishedNot PublishedMulti-student assistance available (amount not published)Not Published
Lower school on campusHS onlyHS onlyHS only
Yes

PK3–12

Open houseNov 7, 2026Not postedNot postedNov 1, 2026
Required test
ISEE (or CLT for classical-school students)
None
In-house placement test
ISEE
Application deadlineJan 15, 2027Not postedNot postedNot posted
Decision dateNot postedNot postedNot postedNot posted
Financial aid
Need-based + Merit
Need-based
Need-based + Merit
Need-based + Merit
AP coursesNot postedNot postedNot posted20
EnrollmentNot Published2680300
Student:TeacherNot PublishedNot Published4.5:18.1:1
Mass
Daily
Monthly
Monthly
Not Published
Sports11 sportsNot posted13 sports12 sports
Links

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