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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.)
St. ThomasISEE (School code 571055; freshmen. Transfers: ISEE or PSAT.)
St. John XXIIIISEE (School code 570048; 9th grade. 11th/12th transfers submit PSAT. Last cycle: opened Sept 1, deadline Jan 15, docs Jan 31, rolling after.)
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.)

World Languages

St. Catherine'sSpanish · Latin/French/ASL/Portuguese via independent study & university partnerships
St. ThomasFrench · Spanish · Mandarin · Latin
St. John XXIIISpanish (confirmed via Spanish NHS; full list not published)
O'ConnellSpanish I-III · German (IV dual credit) · American Sign Language I-III

Dual Credit

St. Catherine'sNot Published
St. ThomasYes (4 dual-credit courses via University of St. Thomas)
St. John XXIIINot Published
O'ConnellYes (Via Galveston College: English III/IV, US History, Government, Spanish I/II, German IV (TSI test required))

Recommendations

St. Catherine'sNot Published
St. ThomasMath + English teachers (HAIS forms, after Dec 1); student statement + resume; report cards gr 6-8
St. John XXIIITeacher recommendations (school forms) + official transcripts; interviews for transfers only
O'ConnellNot Published

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.)
St. ThomasNot Published
St. John XXIIINot Published
O'ConnellNot Published

AP Courses

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

AP Program

St. Catherine'sNot Published
St. ThomasNot Published
St. John XXIIIAP and honors coursework offered (count not published; Course Selection Guide not public)
O'ConnellNot Published

Application Deadline

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

Learning Support

St. Catherine'sNot Published
St. ThomasLearning Enrichment Center; college counseling with 4-year plan
St. John XXIIINot Published
O'ConnellNot Published

Notable Programs

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

Commute from home

	St. Catherine's Montessori	St. Thomas High School	St. John XXIII College Preparatory	O'Connell College Preparatory School
Tuition	$20,560 2026-27 rate · 9th grade; grades 10-12: $20,753	$27,900 2026-27 rate	$22,100 2026-27 rate	$9,100 2025-26 rate (newest published)
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	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 Enrollment Fee: $500 Financial aid application (Clarity): $60 — 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	10% off for each younger sibling	$2,000/yr per sibling after the first	2nd student $17,680 ($4,420 off)	Multi-student assistance available (amount not published)
Lower school on campus	Yes 14 months–12th (Montessori)	HS only	HS only	HS only
Open house	Not posted	Dec 6, 2026	Not posted	Not posted
Required test	None	ISEE Offered on campus: Nov 14, 2026 · Jan 9, 2027	ISEE	In-house placement test
Application deadline	Jan 15, 2027	Jan 15, 2027	Not posted	Not posted
Decision date	Mar 5, 2027	Mar 5, 2027	Not posted	Not posted
Financial aid	Need-based	Need-based + Merit	Need-based + Merit	Need-based + Merit
AP courses	Not posted	21	Not posted	Not posted
Enrollment	23	791	432	80
Student:Teacher	14.4:1	9:1	11.3:1	4.5:1
Mass	Monthly	Monthly	Weekly Daily Mass also offered	Monthly
Sports	6 sports	12 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.