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Mass

St. John XXIIIWeekly all-school Mass (Day not published; moves for Solemnities and Holy Days. Students attend in full Mass uniform.)
DuchesneNot Published
St. Catherine'sMonthly (School-wide statement (all levels attend monthly); no high-school-specific schedule published. Daily student-led communal prayer; weekly Atrium (Catechesis of the Good Shepherd).)

Retreats

St. John XXIIIMandatory class retreats (Oboedientia/Pax/Virtus/Renovatio) + optional Kairos (jr/sr) and Quest (fr/so); daily Mass + weekly all-school Mass
DuchesneCampus Ministry (student-led): liturgies, Masses, prayer services, retreats; Five Sacred Heart Goals
St. Catherine'sNot Published

Service Program

St. John XXIIINot Published
DuchesneService Learning Requirement — off-campus volunteering with reflection component; 10,000+ community hours school-wide annually (per-student count not published)
St. Catherine'sService-learning with 54 partner organizations (Houston Food Bank, Catholic Charities, Houston Zoo); HS community service trips and retreats (no published hour requirement)

Daily Mass

St. John XXIIIAvailable daily throughout the year (Plus Eucharistic adoration, twice-yearly penance services, daily Angelus)
DuchesneNot Published
St. Catherine'sNot Published

Religious Tradition

St. John XXIIINot Published
DuchesneNot Published
St. Catherine'sFounded 1966 by Dominican Sisters; independent Catholic with Dominican charism; Catechesis of the Good Shepherd; HS theology aligned with the Archdiocese

Service Hours by Grade

St. John XXIIIFreshmen 20 · Sophomores 25 · Juniors 25 · Seniors 30 (per year, with due dates each spring)
DuchesneNot Published
St. Catherine'sNot Published

Theology All Four Years

Commute from home

	St. John XXIII College Preparatory	Duchesne Academy of the Sacred Heart	St. Catherine's Montessori
Tuition	$22,100 2026-27 rate	$33,600 2026-27 rate · Upper School	$20,560 2026-27 rate · 9th grade; grades 10-12: $20,753
What's included	Fees listed separately see fees New Student Enrollment Fee: $500 Financial aid application (Clarity): $60 — 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: $150 Tuition deposit: $750 New Student Fee: $850 Facility fee: $800 Program fee: $2,500–$2,750
Sibling discount	2nd student $17,680 ($4,420 off)	Not Published	10% off for each younger sibling
Lower school on campus	HS only	Yes PK3–12	Yes 14 months–12th (Montessori)
Open house	Not posted	Nov 1, 2026	Not posted
Required test	ISEE	ISEE	None
Application deadline	Not posted	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	20	Not posted
Enrollment	432	300	23
Student:Teacher	11.3:1	8.1:1	14.4:1
Mass	Weekly Daily Mass also offered	Not Published	Monthly
Sports	13 sports	12 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.