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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.)
St. Pius XISEE (School code 571082; 9th-grade applicants. Transfers submit PSAT/SAT/ACT. School offers an ISEE prep course. Application opens Sept 1.)
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.)

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.)
St. Pius XNot Published
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.)

Dual Credit

Learning Support

CathedralLearning Enrichment Center — an individual learning plan for every student; tutoring, accommodations and testing support
St. Pius XPaul A. Gilliam '98 Learning for Success program — structured academic support ($2,500/yr)
St. Catherine'sNot Published

Recommendations

CathedralMath, English + Administrator (HAIS forms); transcripts 3 prior years; student essay
St. Pius XMath + English teachers, Principal/Counselor; student essay; transcripts
St. Catherine'sNot Published

World Languages

CathedralLatin I-IV · Greek I-II · Modern language elective (Years 3-4)
St. Pius XNot Published
St. Catherine'sSpanish · Latin/French/ASL/Portuguese via independent study & university partnerships

Family Interview

Honors & AP Courses

Notable Programs

CathedralNot Published
St. Pius X"Engineer Your World I & II," Computer Science; electives in Business, Law, Psychology, Media Arts
St. Catherine'sNot Published

Commute from home

	Cathedral High School	St. Pius X High School	St. Catherine's Montessori
Tuition	$22,850 2026-27 rate	$22,850 2026-27 rate	$20,560 2026-27 rate · 9th grade; grades 10-12: $20,753
What's included	Fees listed separately No itemized fees published.	Fees listed separately see fees Registration fee (new students): $350 Graduation fee (seniors): $280 (seniors) Athletics fee: $150–$350 (per sport) — optional Learning for Success program: $2,500 (if enrolled in program) — optional Bus transportation: $1,550 — optional	Fees listed separately see fees Application fee: $150 Tuition deposit: $750 New Student Fee: $850 Facility fee: $800 Program fee: $2,500–$2,750
Sibling discount	Not Published	Half tuition for a 3rd concurrently enrolled child	10% off for each younger sibling
Lower school on campus	HS only	HS only	Yes 14 months–12th (Montessori)
Open house	Nov 7, 2026	Not posted	Not posted
Required test	ISEE (or CLT for classical-school students)	ISEE	None
Application deadline	Jan 15, 2027	Not posted	Jan 15, 2027
Decision date	Not posted	Not posted	Mar 5, 2027
Financial aid	Need-based + Merit	Need-based + Merit	Need-based
AP courses	Not posted	Not posted	Not posted
Enrollment	Not Published	655	23
Student:Teacher	Not Published	7:1	14.4:1
Mass	Daily	Monthly	Monthly
Sports	11 sports	14 sports	6 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.