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Cathedral Cristo Rey Duchesne Frassati Incarnate Word O'Connell St. Agnes St. Catherine's St. John XXIII St. Peter CTHS St. Pius X St. Thomas Strake Jesuit

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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.)
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.)
FrassatiHSPT or ISEE (Either test is accepted. On-campus HSPT: Jan 9 + Jan 23, 2027. ERB member 571107. Transfers may substitute PSAT.)

World Languages

CathedralLatin I-IV · Greek I-II · Modern language elective (Years 3-4)
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
FrassatiFrench (through AP; Bordeaux/Lourdes exchange) · Spanish (through AP)

Dual Credit

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

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. 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
FrassatiNot Published

Family Interview

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

Notable Programs

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

Recommendations

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

Learning Support

CathedralLearning Enrichment Center — an individual learning plan for every student; tutoring, accommodations and testing support
St. Catherine'sNot Published
O'ConnellNot Published
FrassatiNot Published

Commute from home

	Cathedral High School	St. Catherine's Montessori	O'Connell College Preparatory School	Frassati Catholic High School
Tuition	$22,850 2026-27 rate	$20,560 2026-27 rate · 9th grade; grades 10-12: $20,753	$9,100 2025-26 rate (newest published)	$24,050 2026-27 rate
What's included	Fees listed separately No itemized fees published.	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	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
Sibling discount	Not Published	10% off for each younger sibling	Multi-student assistance available (amount not published)	$3,000 off 2nd student; $9,425 off 3rd (tuition only)
Lower school on campus	HS only	Yes 14 months–12th (Montessori)	HS only	HS only
Open house	Nov 7, 2026	Not posted	Not posted	Oct 28, 2026
Required test	ISEE (or CLT for classical-school students)	None	In-house placement test	HSPT or ISEE Offered on campus: Jan 9, 2027 · Jan 23, 2027
Application deadline	Jan 15, 2027	Jan 15, 2027	Not posted	Not posted
Decision date	Not posted	Mar 5, 2027	Not posted	Not posted
Financial aid	Need-based + Merit	Need-based	Need-based + Merit	Need-based
AP courses	Not posted	Not posted	Not posted	Not posted
Enrollment	Not Published	23	80	364
Student:Teacher	Not Published	14.4:1	4.5:1	11:1
Mass	Daily	Monthly	Monthly	Weekly Thursdays, 9:15 AM
Sports	11 sports	6 sports	13 sports	13 sports
Links	Full profile Admissions	Full profile Admissions	Full profile Admissions	Full profile Admissions

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