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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.)
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.)
Incarnate WordISEE (School code 570451; up to two scores. Application opens Aug 17, 2026.)

Dual Credit

St. Catherine'sNot Published
O'ConnellYes (Via Galveston College: English III/IV, US History, Government, Spanish I/II, German IV (TSI test required))
Incarnate WordYes (4 courses with Lone Star College)

Notable Programs

St. Catherine'sNot Published
O'ConnellSTEAM electives: Robotics, Computer Science, Esports, Horticulture, Graphic Design; Honors Engineering I & II; A La Carte program for homeschoolers
Incarnate WordYoung Leaders Program; 5 endorsements; STEM emphasis

World Languages

St. Catherine'sSpanish · Latin/French/ASL/Portuguese via independent study & university partnerships
O'ConnellSpanish I-III · German (IV dual credit) · American Sign Language I-III
Incarnate WordNot 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.)
O'ConnellNot Published
Incarnate WordNot Published

AP Courses

St. Catherine'sNot Published
O'ConnellNot Published
Incarnate Word18 (Academics page says 18, FAQ says 19; AP Honor Roll Platinum; >75% of AP testers score 3-5)

Application Deadline

St. Catherine'sNot Published
O'ConnellNot Published
Incarnate Word2026-12-14 (Earliest deadline of the Houston Catholic schools; supplemental materials Jan 29, 2027)

Recommendations

St. Catherine'sNot Published
O'ConnellNot Published
Incarnate WordMath + English teachers (HAIS forms); transcripts 6th, 7th, 1st-sem 8th

Commute from home

	St. Catherine's Montessori	O'Connell College Preparatory School	Incarnate Word Academy
Tuition	$20,560 2026-27 rate · 9th grade; grades 10-12: $20,753	$9,100 2025-26 rate (newest published)	$22,800 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 see fees Registration fee: $450 Technology fee: $200 Sports fee: $150–$250 (per sport ($450 all-season package)) — 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: —
Sibling discount	10% off for each younger sibling	Multi-student assistance available (amount not published)	Not Published
Lower school on campus	Yes 14 months–12th (Montessori)	HS only	HS only
Open house	Not posted	Not posted	Nov 8, 2026
Required test	None	In-house placement test	ISEE Offered on campus: Jan 9, 2027
Application deadline	Jan 15, 2027	Not posted	Dec 14, 2026
Decision date	Mar 5, 2027	Not posted	Mar 5, 2027
Financial aid	Need-based	Need-based + Merit	Need-based + Merit
AP courses	Not posted	Not posted	18
Enrollment	23	80	248
Student:Teacher	14.4:1	4.5:1	8.3:1
Mass	Monthly	Monthly	Monthly
Sports	6 sports	13 sports	10 sports
Links	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.