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CathedralCristo ReyDuchesneFrassatiIncarnate WordO'ConnellSt. AgnesSt. Catherine'sSt. John XXIIISt. Peter CTHSSt. Pius XSt. ThomasStrake Jesuit

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AcademicsCollege CounselingAthleticsFaith & ServiceStudent LifeArtsDaily LifeStudent SupportCollege OutcomesCost & Financial Aid

Faith & Service

Mass

  • 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.)
  • St. ThomasMonthly all-school Mass, plus Holy Days of Obligation (Weekly opportunities for Mass, Confession, Adoration and Rosary in addition)

Religious Tradition

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

Retreats

  • O'ConnellNot Published
  • St. ThomasCamp Aquinas freshman retreat; grade-level retreats; dedicated Director of Retreats. Basilian motto: "Teach me Goodness, Discipline, and Knowledge"

Service Hours Required

  • O'Connell100 (25 hrs/year all students + senior project of 50-100 hrs (graduation requirement). Motto: "Enter to learn, leave to serve.")
  • St. ThomasNot Published

Service Program

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

Theology All Four Years

  • O'ConnellYes (Theology I-IV (4 credits); retreats included in tuition)
  • St. ThomasNot Published
Commute from home
O'Connell College Preparatory School
St. Thomas High School
Tuition
$9,100

2025-26 rate (newest published)

$27,900

2026-27 rate

What's included
Fees listed separately see fees
  • Registration fee: $450
  • Technology fee: $200
  • Sports fee: $150–$250 (per sport ($450 all-season package)) — optional
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
Sibling discountMulti-student assistance available (amount not published)$2,000/yr per sibling after the first
Lower school on campusHS onlyHS only
Open houseNot postedDec 6, 2026
Required test
In-house placement test
ISEE

Offered on campus: Nov 14, 2026 · Jan 9, 2027

Application deadlineNot postedJan 15, 2027
Decision dateNot postedMar 5, 2027
Financial aid
Need-based + Merit
Need-based + Merit
AP coursesNot posted21
Enrollment80791
Student:Teacher4.5:19:1
Mass
Monthly
Monthly
Sports13 sports12 sports
Links
Full profileAdmissions
Full profileAdmissions

“Not posted” means the school hasn’t published it yet for this admissions cycle — check each school’s full profile for sources.