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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.)
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).)
CathedralDaily — Mass for the whole school every day (Anglican-patrimony liturgy; regular Evensong and Lessons & Carols alongside.)

Daily Mass

St. John XXIIIAvailable daily throughout the year (Plus Eucharistic adoration, twice-yearly penance services, daily Angelus)
St. Catherine'sNot Published
CathedralYes — built into the school day for all students

Religious Tradition

St. John XXIIINot Published
St. Catherine'sFounded 1966 by Dominican Sisters; independent Catholic with Dominican charism; Catechesis of the Good Shepherd; HS theology aligned with the Archdiocese
CathedralPersonal Ordinariate of the Chair of St. Peter (Bishop Lopes) — Anglican-patrimony Catholic liturgy: daily Mass for the whole school, regular Evensong, Lessons & Carols. Open to all students, not only Ordinariate members. Liturgies are held at the Cathedral of Our Lady of Walsingham.

Retreats

St. John XXIIIMandatory class retreats (Oboedientia/Pax/Virtus/Renovatio) + optional Kairos (jr/sr) and Quest (fr/so); daily Mass + weekly all-school Mass
St. Catherine'sNot Published
CathedralFreshman Retreat; Newman Retreat; House system (Benedict, Neri, Barbieri, De Sales)

Service Hours by Grade

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

Service Program

St. John XXIIINot 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)
CathedralNot Published

Commute from home

	St. John XXIII College Preparatory	St. Catherine's Montessori	Cathedral High School
Tuition	$22,100 2026-27 rate	$20,560 2026-27 rate · 9th grade; grades 10-12: $20,753	$22,850 2026-27 rate
What's included	Fees listed separately see fees New Student Enrollment Fee: $500 Financial aid application (Clarity): $60 — 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	Fees listed separately No itemized fees published.
Sibling discount	2nd student $17,680 ($4,420 off)	10% off for each younger sibling	Not Published
Lower school on campus	HS only	Yes 14 months–12th (Montessori)	HS only
Open house	Not posted	Not posted	Nov 7, 2026
Required test	ISEE	None	ISEE (or CLT for classical-school students)
Application deadline	Not posted	Jan 15, 2027	Jan 15, 2027
Decision date	Not posted	Mar 5, 2027	Not posted
Financial aid	Need-based + Merit	Need-based	Need-based + Merit
AP courses	Not posted	Not posted	Not posted
Enrollment	432	23	Not Published
Student:Teacher	11.3:1	14.4:1	Not Published
Mass	Weekly Daily Mass also offered	Monthly	Daily
Sports	13 sports	6 sports	11 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.