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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

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)
St. ThomasYes (4 dual-credit courses via University of St. Thomas)

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

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
St. ThomasFrench · Spanish · Mandarin · Latin

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
St. ThomasMath + English teachers (HAIS forms, after Dec 1); student statement + resume; report cards gr 6-8

AP Courses

CathedralNot Published
O'ConnellNot Published
Duchesne20 (AP enrollment caps: soph 1 / jr 2 / sr 3; AP exam required if enrolled)
St. Thomas21 (40+ advanced/AP courses overall)

Learning Support

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

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
St. ThomasNot Published

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
St. ThomasNot Published

Application Deadline

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

Family Interview

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

Honors Courses

CathedralNot Published
O'ConnellNot Published
Duchesne12 (Called "Advanced" courses)
St. ThomasNot Published

Commute from home

	Cathedral High School	O'Connell College Preparatory School	Duchesne Academy of the Sacred Heart	St. Thomas High School
Tuition	$22,850 2026-27 rate	$9,100 2025-26 rate (newest published)	$33,600 2026-27 rate · Upper School	$27,900 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	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	Not Published	Multi-student assistance available (amount not published)	Not Published	$2,000/yr per sibling after the first
Lower school on campus	HS only	HS only	Yes PK3–12	HS only
Open house	Nov 7, 2026	Not posted	Nov 1, 2026	Dec 6, 2026
Required test	ISEE (or CLT for classical-school students)	In-house placement test	ISEE	ISEE Offered on campus: Nov 14, 2026 · Jan 9, 2027
Application deadline	Jan 15, 2027	Not posted	Not posted	Jan 15, 2027
Decision date	Not posted	Not posted	Not posted	Mar 5, 2027
Financial aid	Need-based + Merit	Need-based + Merit	Need-based + Merit	Need-based + Merit
AP courses	Not posted	Not posted	20	21
Enrollment	Not Published	80	300	791
Student:Teacher	Not Published	4.5:1	8.1:1	9:1
Mass	Daily	Monthly	Not Published	Monthly
Sports	11 sports	13 sports	12 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.