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Academics

Dual Credit

  • CathedralYes (University of St. Thomas partnership (est. June 2023))
  • 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)
  • Incarnate WordYes (4 courses with Lone Star College)

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.)
  • 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)
  • Incarnate WordISEE (School code 570451; up to two scores. Application opens Aug 17, 2026.)

Notable Programs

  • CathedralNot 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
  • Incarnate WordYoung Leaders Program; 5 endorsements; STEM emphasis

Recommendations

  • CathedralMath, English + Administrator (HAIS forms); transcripts 3 prior years; student essay
  • O'ConnellNot Published
  • DuchesneEnglish and/or Math teacher + principal/head of school; 2 years transcripts
  • Incarnate WordMath + English teachers (HAIS forms); transcripts 6th, 7th, 1st-sem 8th

World Languages

  • CathedralLatin I-IV · Greek I-II · Modern language elective (Years 3-4)
  • 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
  • Incarnate WordNot Published

AP Courses

  • CathedralNot Published
  • O'ConnellNot Published
  • Duchesne20 (AP enrollment caps: soph 1 / jr 2 / sr 3; AP exam required if enrolled)
  • Incarnate Word18 (Academics page says 18, FAQ says 19; AP Honor Roll Platinum; >75% of AP testers score 3-5)

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.)
  • O'ConnellNot Published
  • DuchesneNot Published
  • Incarnate WordNot Published

Application Deadline

  • CathedralNot Published
  • O'ConnellNot Published
  • DuchesneNot Published
  • Incarnate Word2026-12-14 (Earliest deadline of the Houston Catholic schools; supplemental materials Jan 29, 2027)

Family Interview

  • CathedralYes (Family interview at the school — parents and student)
  • O'ConnellNot Published
  • DuchesneNot Published
  • Incarnate WordNot Published

Honors Courses

  • CathedralNot Published
  • O'ConnellNot Published
  • Duchesne12 (Called "Advanced" courses)
  • Incarnate WordNot Published

Learning Support

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

2026-27 rate

$9,100

2025-26 rate (newest published)

$33,600

2026-27 rate · Upper School

$22,800

2026-27 rate

What's included
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
Fees listed separately see fees
  • Application fee: $75
  • Registration fee: $350
  • Tuition deposit: $500
  • Freshman fee (orientation camp): $350 (freshmen)
  • Senior fee (graduation + retreat): $300 (seniors)
  • Books:
Sibling discountNot PublishedMulti-student assistance available (amount not published)Not PublishedNot Published
Lower school on campusHS onlyHS only
Yes

PK3–12

HS only
Open houseNov 7, 2026Not postedNov 1, 2026Nov 8, 2026
Required test
ISEE (or CLT for classical-school students)
In-house placement test
ISEE
ISEE

Offered on campus: Jan 9, 2027

Application deadlineJan 15, 2027Not postedNot postedDec 14, 2026
Decision dateNot postedNot postedNot postedMar 5, 2027
Financial aid
Need-based + Merit
Need-based + Merit
Need-based + Merit
Need-based + Merit
AP coursesNot postedNot posted2018
EnrollmentNot Published80300248
Student:TeacherNot Published4.5:18.1:18.3:1
Mass
Daily
Monthly
Not Published
Monthly
Sports11 sports13 sports12 sports10 sports
Links

“Not posted” means the school hasn’t published it yet for this admissions cycle — check each school’s full profile for sources.