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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. ThomasISEE (School code 571055; freshmen. Transfers: ISEE or PSAT.)
DuchesneISEE (Administered externally; campus tour + family interview also required)
St. AgnesISEE (School code 443420; up to 2 scores; first attempt before Dec 1 (ERB rule))
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)
St. Agnes25
O'ConnellNot Published

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)
St. AgnesNot Published
O'ConnellYes (Via Galveston College: English III/IV, US History, Government, Spanish I/II, German IV (TSI test required))

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
St. AgnesEnglish + Math teachers (due Jan 14, 2027)
O'ConnellNot Published

World Languages

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

Honors Courses

St. ThomasNot Published
Duchesne12 (Called "Advanced" courses)
St. Agnes12
O'ConnellNot Published

Notable Programs

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

AP Exams Scored 3+

St. ThomasNot Published
DuchesneNot Published
St. Agnes97 (% of AP exams scored 3+)
O'ConnellNot Published

Application Deadline

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

Language Credits Required

St. ThomasNot Published
DuchesneNot Published
St. Agnes2
O'ConnellNot Published

Learning Support

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

Robotics

St. ThomasNot Published
DuchesneNot Published
St. AgnesSpectrum 3847 — 12 consecutive FIRST Championship appearances
O'ConnellNot Published

Test Score Deadline

St. ThomasNot Published
DuchesneNot Published
St. Agnes2027-02-01
O'ConnellNot Published

Commute from home

	St. Thomas High School	Duchesne Academy of the Sacred Heart	St. Agnes Academy	O'Connell College Preparatory School
Tuition	$27,900 2026-27 rate	$33,600 2026-27 rate · Upper School	$28,400 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 ($125 for transfer applicants) Enrollment deposit: $500 Tablet PC (technology): $1,725 AP test fee: $105 (per AP / Honors-AP class) — optional Senior fee: $350 (seniors only) — optional Athletics fee: $150 (per sport) — optional	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	Not posted	Not posted
Required test	ISEE Offered on campus: Nov 14, 2026 · Jan 9, 2027	ISEE	ISEE Offered on campus: Nov 14, 2026	In-house placement test
Application deadline	Jan 15, 2027	Not posted	Not posted	Not posted
Decision date	Mar 5, 2027	Not posted	Not posted	Not posted
Financial aid	Need-based + Merit	Need-based + Merit	Need-based No merit scholarships	Need-based + Merit
AP courses	21	20	25	Not posted
Enrollment	791	300	934	80
Student:Teacher	9:1	8.1:1	9:1	4.5:1
Mass	Monthly	Not Published	Weekly Thursdays, 9:10 AM	Monthly
Sports	12 sports	12 sports	12 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.