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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.)
DuchesneISEE (Administered externally; campus tour + family interview also required)
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.)

World Languages

St. Catherine'sSpanish · Latin/French/ASL/Portuguese via independent study & university partnerships
DuchesneFrench (incl. Advanced IV-DELF B1) · Spanish (incl. AP) · American Sign Language I-III
St. John XXIIISpanish (confirmed via Spanish NHS; full list not published)

Recommendations

St. Catherine'sNot Published
DuchesneEnglish and/or Math teacher + principal/head of school; 2 years transcripts
St. John XXIIITeacher recommendations (school forms) + official transcripts; interviews for transfers only

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.)
DuchesneNot Published
St. John XXIIINot Published

AP Courses

St. Catherine'sNot Published
Duchesne20 (AP enrollment caps: soph 1 / jr 2 / sr 3; AP exam required if enrolled)
St. John XXIIINot Published

AP Program

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

Dual Credit

St. Catherine'sNot Published
DuchesneYes (University of St. Thomas partnership; online electives via SophieConnect + One Schoolhouse)
St. John XXIIINot Published

Honors Courses

Notable Programs

St. Catherine'sNot Published
DuchesneRobotics and competitive debate programs; IT internship with Microsoft certification; junior Research Paper requirement
St. John XXIIINot Published

Commute from home

	St. Catherine's Montessori	Duchesne Academy of the Sacred Heart	St. John XXIII College Preparatory
Tuition	$20,560 2026-27 rate · 9th grade; grades 10-12: $20,753	$33,600 2026-27 rate · Upper School	$22,100 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 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 New Student Enrollment Fee: $500 Financial aid application (Clarity): $60 — optional
Sibling discount	10% off for each younger sibling	Not Published	2nd student $17,680 ($4,420 off)
Lower school on campus	Yes 14 months–12th (Montessori)	Yes PK3–12	HS only
Open house	Not posted	Nov 1, 2026	Not posted
Required test	None	ISEE	ISEE
Application deadline	Jan 15, 2027	Not posted	Not posted
Decision date	Mar 5, 2027	Not posted	Not posted
Financial aid	Need-based	Need-based + Merit	Need-based + Merit
AP courses	Not posted	20	Not posted
Enrollment	23	300	432
Student:Teacher	14.4:1	8.1:1	11.3:1
Mass	Monthly	Not Published	Weekly Daily Mass also offered
Sports	6 sports	12 sports	13 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.