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Pick up to 4 schools to see them side by side.

Cathedral Cristo Rey Duchesne Frassati Incarnate Word O'Connell St. Agnes St. Catherine's St. John XXIII St. Peter CTHS St. Pius X St. Thomas Strake Jesuit

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Academics College Counseling Athletics Faith & Service Student Life Arts Daily Life Student Support College Outcomes Cost & Financial Aid

Faith & Service

Mass

St. ThomasMonthly all-school Mass, plus Holy Days of Obligation (Weekly opportunities for Mass, Confession, Adoration and Rosary in addition)
St. Pius XMonthly all-school liturgy (Attendance and participation required of every student, of any faith tradition. Daily prayer opens and closes each school day.)
O'ConnellMonthly all-school liturgy (on or off campus) (Day of week not published; handbook includes a bell schedule for 10 a.m. Mass days. All students attend.)

Retreats

St. ThomasCamp Aquinas freshman retreat; grade-level retreats; dedicated Director of Retreats. Basilian motto: "Teach me Goodness, Discipline, and Knowledge"
St. Pius XAnnual class-level retreats; Dominican Four Pillars (Prayer, Study, Community, Preaching); all-school liturgies, daily-open chapel
O'ConnellNot Published

Service Hours Required

St. ThomasNot Published
St. Pius X100 (100 hours during junior + senior years, with reflection)
O'Connell100 (25 hrs/year all students + senior project of 50-100 hrs (graduation requirement). Motto: "Enter to learn, leave to serve.")

Religious Tradition

St. ThomasBasilian Fathers — founded 1900. The school describes itself as the oldest college-preparatory high school for young men in Texas.
St. Pius XNot Published
O'ConnellNot Published

Service Program

St. Thomas"Champions for Change" — six service experiences annually (service year Jun 1 - May 31)
St. Pius XNot Published
O'ConnellNot Published

Theology All Four Years

St. ThomasNot Published
St. Pius XNot Published
O'ConnellYes (Theology I-IV (4 credits); retreats included in tuition)

Commute from home

	St. Thomas High School	St. Pius X High School	O'Connell College Preparatory School
Tuition	$27,900 2026-27 rate	$22,850 2026-27 rate	$9,100 2025-26 rate (newest published)
What's included	Included in tuition see list Laptop & technology Charged separately: Application fee: $75 Registration fee: $700 Camp Aquinas (freshman retreat): $650 (freshmen) Class retreat: $325 (returning/transfer students) Books: $550 Athletics fee: $250 (per sport) — optional AP exam: $99 (per course) — optional	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 Registration fee: $450 Technology fee: $200 Sports fee: $150–$250 (per sport ($450 all-season package)) — optional
Sibling discount	$2,000/yr per sibling after the first	Half tuition for a 3rd concurrently enrolled child	Multi-student assistance available (amount not published)
Lower school on campus	HS only	HS only	HS only
Open house	Dec 6, 2026	Not posted	Not posted
Required test	ISEE Offered on campus: Nov 14, 2026 · Jan 9, 2027	ISEE	In-house placement test
Application deadline	Jan 15, 2027	Not posted	Not posted
Decision date	Mar 5, 2027	Not posted	Not posted
Financial aid	Need-based + Merit	Need-based + Merit	Need-based + Merit
AP courses	21	Not posted	Not posted
Enrollment	791	655	80
Student:Teacher	9:1	7:1	4.5:1
Mass	Monthly	Monthly	Monthly
Sports	12 sports	14 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.