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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

St. ThomasYes (4 dual-credit courses via University of St. Thomas)
DuchesneYes (University of St. Thomas partnership; online electives via SophieConnect + One Schoolhouse)
Incarnate WordYes (4 courses with Lone Star College)
O'ConnellYes (Via Galveston College: English III/IV, US History, Government, Spanish I/II, German IV (TSI test required))

Entrance Exam

St. ThomasISEE (School code 571055; freshmen. Transfers: ISEE or PSAT.)
DuchesneISEE (Administered externally; campus tour + family interview also required)
Incarnate WordISEE (School code 570451; up to two scores. Application opens Aug 17, 2026.)
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.)

AP Courses

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

Notable Programs

St. ThomasNot Published
DuchesneRobotics and competitive debate programs; IT internship with Microsoft certification; junior Research Paper requirement
Incarnate WordYoung Leaders Program; 5 endorsements; STEM emphasis
O'ConnellSTEAM electives: Robotics, Computer Science, Esports, Horticulture, Graphic Design; Honors Engineering I & II; A La Carte program for homeschoolers

Recommendations

St. ThomasMath + English teachers (HAIS forms, after Dec 1); student statement + resume; report cards gr 6-8
DuchesneEnglish and/or Math teacher + principal/head of school; 2 years transcripts
Incarnate WordMath + English teachers (HAIS forms); transcripts 6th, 7th, 1st-sem 8th
O'ConnellNot Published

World Languages

St. ThomasFrench · Spanish · Mandarin · Latin
DuchesneFrench (incl. Advanced IV-DELF B1) · Spanish (incl. AP) · American Sign Language I-III
Incarnate WordNot Published
O'ConnellSpanish I-III · German (IV dual credit) · American Sign Language I-III

Application Deadline

St. Thomas2027-01-15 (Opens Aug 3, 2026; supporting docs due Jan 31; rolling after)
DuchesneNot Published
Incarnate Word2026-12-14 (Earliest deadline of the Houston Catholic schools; supplemental materials Jan 29, 2027)
O'ConnellNot Published

Honors Courses

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

Learning Support

St. ThomasLearning Enrichment Center; college counseling with 4-year plan
DuchesneNot Published
Incarnate WordNot Published
O'ConnellNot Published

Commute from home

	St. Thomas High School	Duchesne Academy of the Sacred Heart	Incarnate Word Academy	O'Connell College Preparatory School
Tuition	$27,900 2026-27 rate	$33,600 2026-27 rate · Upper School	$22,800 2026-27 rate	$9,100 2025-26 rate (newest published)
What's included	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	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: —	Fees listed separately see fees Registration fee: $450 Technology fee: $200 Sports fee: $150–$250 (per sport ($450 all-season package)) — optional
Sibling discount	$2,000/yr per sibling after the first	Not Published	Not Published	Multi-student assistance available (amount not published)
Lower school on campus	HS only	Yes PK3–12	HS only	HS only
Open house	Dec 6, 2026	Nov 1, 2026	Nov 8, 2026	Not posted
Required test	ISEE Offered on campus: Nov 14, 2026 · Jan 9, 2027	ISEE	ISEE Offered on campus: Jan 9, 2027	In-house placement test
Application deadline	Jan 15, 2027	Not posted	Dec 14, 2026	Not posted
Decision date	Mar 5, 2027	Not posted	Mar 5, 2027	Not posted
Financial aid	Need-based + Merit	Need-based + Merit	Need-based + Merit	Need-based + Merit
AP courses	21	20	18	Not posted
Enrollment	791	300	248	80
Student:Teacher	9:1	8.1:1	8.3:1	4.5:1
Mass	Monthly	Not Published	Monthly	Monthly
Sports	12 sports	12 sports	10 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.