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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 College Counseling Athletics Faith & Service Student Life Arts Daily Life Student Support College Outcomes Cost & Financial Aid

Academics

Entrance Exam

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.)
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.)
St. ThomasISEE (School code 571055; freshmen. Transfers: ISEE or PSAT.)

World Languages

St. Catherine'sSpanish · Latin/French/ASL/Portuguese via independent study & university partnerships
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
St. ThomasFrench · Spanish · Mandarin · Latin

Dual Credit

St. Catherine'sNot Published
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))
St. ThomasYes (4 dual-credit courses via University of St. Thomas)

Academic Model

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.)
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
St. ThomasNot Published

Learning Support

St. Catherine'sNot Published
CathedralLearning Enrichment Center — an individual learning plan for every student; tutoring, accommodations and testing support
O'ConnellNot Published
St. ThomasLearning Enrichment Center; college counseling with 4-year plan

Recommendations

St. Catherine'sNot Published
CathedralMath, English + Administrator (HAIS forms); transcripts 3 prior years; student essay
O'ConnellNot Published
St. ThomasMath + English teachers (HAIS forms, after Dec 1); student statement + resume; report cards gr 6-8

AP Courses

St. Catherine'sNot Published
CathedralNot Published
O'ConnellNot Published
St. Thomas21 (40+ advanced/AP courses overall)

Application Deadline

St. Catherine'sNot Published
CathedralNot Published
O'ConnellNot Published
St. Thomas2027-01-15 (Opens Aug 3, 2026; supporting docs due Jan 31; rolling after)

Family Interview

St. Catherine'sNot Published
CathedralYes (Family interview at the school — parents and student)
O'ConnellNot Published
St. ThomasNot Published

Notable Programs

St. Catherine'sNot Published
CathedralNot Published
O'ConnellSTEAM electives: Robotics, Computer Science, Esports, Horticulture, Graphic Design; Honors Engineering I & II; A La Carte program for homeschoolers
St. ThomasNot Published

Commute from home

	St. Catherine's Montessori	Cathedral High School	O'Connell College Preparatory School	St. Thomas High School
Tuition	$20,560 2026-27 rate · 9th grade; grades 10-12: $20,753	$22,850 2026-27 rate	$9,100 2025-26 rate (newest published)	$27,900 2026-27 rate
What's included	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 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	Included in tuition see list Laptop & technology Charged separately: Application fee: $75 Registration fee: $700 Camp Aquinas (freshman retreat): $650 (freshmen) Class retreat: $325 (returning/transfer students) Books: $550 Athletics fee: $250 (per sport) — optional AP exam: $99 (per course) — optional
Sibling discount	10% off for each younger sibling	Not Published	Multi-student assistance available (amount not published)	$2,000/yr per sibling after the first
Lower school on campus	Yes 14 months–12th (Montessori)	HS only	HS only	HS only
Open house	Not posted	Nov 7, 2026	Not posted	Dec 6, 2026
Required test	None	ISEE (or CLT for classical-school students)	In-house placement test	ISEE Offered on campus: Nov 14, 2026 · Jan 9, 2027
Application deadline	Jan 15, 2027	Jan 15, 2027	Not posted	Jan 15, 2027
Decision date	Mar 5, 2027	Not posted	Not posted	Mar 5, 2027
Financial aid	Need-based	Need-based + Merit	Need-based + Merit	Need-based + Merit
AP courses	Not posted	Not posted	Not posted	21
Enrollment	23	Not Published	80	791
Student:Teacher	14.4:1	Not Published	4.5:1	9:1
Mass	Monthly	Daily	Monthly	Monthly
Sports	6 sports	11 sports	13 sports	12 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.