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Academics

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.)
  • FrassatiHSPT or ISEE (Either test is accepted. On-campus HSPT: Jan 9 + Jan 23, 2027. ERB member 571107. Transfers may substitute PSAT.)
  • St. Catherine'sNone (No admission test. Inquiry → adults-only tour → director meeting → application ($150) + records + lesson samples → student classroom visit. 9th graders enter the Adolescent Community (gr 7-9); High School entry is gr 10-12.)
  • 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.)

World Languages

  • CathedralLatin I-IV · Greek I-II · Modern language elective (Years 3-4)
  • FrassatiFrench (through AP; Bordeaux/Lourdes exchange) · Spanish (through AP)
  • St. Catherine'sSpanish · Latin/French/ASL/Portuguese via independent study & university partnerships
  • O'ConnellSpanish I-III · German (IV dual credit) · American Sign Language I-III

Dual Credit

  • CathedralYes (University of St. Thomas partnership (est. June 2023))
  • FrassatiYes (University of St. Thomas (one course/yr) + Catholic University of America (entrepreneurship))
  • St. Catherine'sNot Published
  • O'ConnellYes (Via Galveston College: English III/IV, US History, Government, Spanish I/II, German IV (TSI test required))

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.)
  • FrassatiNot Published
  • St. Catherine'sAMI-accredited Catholic Montessori adolescent program — four integrated areas (Theology, Integrated Humanities, Integrated Sciences, Mathematics); internships (Houston Methodist, law/design firms), university partnerships (St. Thomas, Texas A&M AgriLife), independent study; graduates build a "body of work" (No AP program; university partnerships and internships serve the advanced-work role.)
  • O'ConnellNot Published

Family Interview

  • CathedralYes (Family interview at the school — parents and student)
  • FrassatiYes (~30 min, student + parents with faculty — Jan 23 (8am-3pm) or Jan 28 (3-5pm), 2027; signups Nov 2026.)
  • St. Catherine'sNot Published
  • O'ConnellNot Published

Notable Programs

  • CathedralNot Published
  • FrassatiPhysics-first science sequence; Ethics & Culture department; House System
  • St. Catherine'sNot Published
  • O'ConnellSTEAM electives: Robotics, Computer Science, Esports, Horticulture, Graphic Design; Honors Engineering I & II; A La Carte program for homeschoolers

Recommendations

  • CathedralMath, English + Administrator (HAIS forms); transcripts 3 prior years; student essay
  • Frassati3 — Principal/Counselor, English, Math (via FACTS); transcripts 6th-8th
  • St. Catherine'sNot Published
  • O'ConnellNot Published

AP Courses

  • CathedralNot Published
  • FrassatiNot Published
  • St. Catherine'sNot 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.)

Learning Support

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

2026-27 rate

$24,050

2026-27 rate

$20,560

2026-27 rate · 9th grade; grades 10-12: $20,753

$9,100

2025-26 rate (newest published)

What's included
Fees listed separately

No itemized fees published.

Included in tuition see list
  • Technology fee ($500)
  • Registration ($300)
  • Student activities ($400)
  • Textbooks ($650)

Charged separately:

  • Application fee: $75–$125
  • Enrollment deposit (new families): $700
  • Athletics & Fine Arts fee: $250 (per sport/season) — optional
Fees listed separately see fees
  • Application fee: $150
  • Tuition deposit: $750
  • New Student Fee: $850
  • Facility fee: $800
  • Program fee: $2,500–$2,750
Fees listed separately see fees
  • Registration fee: $450
  • Technology fee: $200
  • Sports fee: $150–$250 (per sport ($450 all-season package)) — optional
Sibling discountNot Published$3,000 off 2nd student; $9,425 off 3rd (tuition only)10% off for each younger siblingMulti-student assistance available (amount not published)
Lower school on campusHS onlyHS only
Yes

14 months–12th (Montessori)

HS only
Open houseNov 7, 2026Oct 28, 2026Not postedNot posted
Required test
ISEE (or CLT for classical-school students)
HSPT or ISEE

Offered on campus: Jan 9, 2027 · Jan 23, 2027

None
In-house placement test
Application deadlineJan 15, 2027Not postedJan 15, 2027Not posted
Decision dateNot postedNot postedMar 5, 2027Not posted
Financial aid
Need-based + Merit
Need-based
Need-based
Need-based + Merit
AP coursesNot postedNot postedNot posted3
EnrollmentNot Published3642380
Student:TeacherNot Published11:114.4:14.5:1
Mass
Daily
Weekly

Thursdays, 9:15 AM

Monthly
Monthly
Sports11 sports13 sports6 sports13 sports
Links

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