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Academics

Dual Credit

  • St. ThomasYes (4 dual-credit courses via University of St. Thomas)
  • Incarnate WordYes (4 courses with Lone Star College)
  • DuchesneYes (University of St. Thomas partnership; online electives via SophieConnect + One Schoolhouse)
  • CathedralYes (University of St. Thomas partnership (est. June 2023))

Entrance Exam

  • St. ThomasISEE (School code 571055; freshmen. Transfers: ISEE or PSAT.)
  • Incarnate WordISEE (School code 570451; up to two scores. Application opens Aug 17, 2026.)
  • DuchesneISEE (Administered externally; campus tour + family interview also required)
  • CathedralISEE (or CLT for classical-school students) (Scores due Jan 30, 2027. Application opens first week of Sept 2026, due Jan 15, 2027. A family interview is required (parents + student); a shadow day can be requested at the interview.)

Recommendations

  • St. ThomasMath + English teachers (HAIS forms, after Dec 1); student statement + resume; report cards gr 6-8
  • Incarnate WordMath + English teachers (HAIS forms); transcripts 6th, 7th, 1st-sem 8th
  • DuchesneEnglish and/or Math teacher + principal/head of school; 2 years transcripts
  • CathedralMath, English + Administrator (HAIS forms); transcripts 3 prior years; student essay

AP Courses

  • St. Thomas21 (40+ advanced/AP courses overall)
  • Incarnate Word18 (Academics page says 18, FAQ says 19; AP Honor Roll Platinum; >75% of AP testers score 3-5)
  • Duchesne20 (AP enrollment caps: soph 1 / jr 2 / sr 3; AP exam required if enrolled)
  • CathedralNot Published

World Languages

  • St. ThomasFrench · Spanish · Mandarin · Latin
  • Incarnate WordNot Published
  • DuchesneFrench (incl. Advanced IV-DELF B1) · Spanish (incl. AP) · American Sign Language I-III
  • CathedralLatin I-IV · Greek I-II · Modern language elective (Years 3-4)

Application Deadline

  • St. Thomas2027-01-15 (Opens Aug 3, 2026; supporting docs due Jan 31; rolling after)
  • Incarnate Word2026-12-14 (Earliest deadline of the Houston Catholic schools; supplemental materials Jan 29, 2027)
  • DuchesneNot Published
  • CathedralNot Published

Learning Support

  • St. ThomasLearning Enrichment Center; college counseling with 4-year plan
  • Incarnate WordNot Published
  • DuchesneNot Published
  • CathedralLearning Enrichment Center — an individual learning plan for every student; tutoring, accommodations and testing support

Notable Programs

  • St. ThomasNot Published
  • Incarnate WordYoung Leaders Program; 5 endorsements; STEM emphasis
  • DuchesneRobotics and competitive debate programs; IT internship with Microsoft certification; junior Research Paper requirement
  • CathedralNot Published

Academic Model

  • St. ThomasNot Published
  • Incarnate WordNot Published
  • DuchesneNot Published
  • CathedralClassical liberal arts — Trivium (Grammar/Logic/Rhetoric), Shakespeare every year, Junior Thesis, Senior Seminar + Senior Rome Trip. Four Pillars: Sacred Worship, Wisdom, Music, Art. (No AP courses are advertised; dual credit serves the advanced-coursework role.)

Family Interview

  • St. ThomasNot Published
  • Incarnate WordNot Published
  • DuchesneNot Published
  • CathedralYes (Family interview at the school — parents and student)

Honors Courses

  • St. ThomasNot Published
  • Incarnate WordNot Published
  • Duchesne12 (Called "Advanced" courses)
  • CathedralNot Published
Commute from home
Tuition
$27,900

2026-27 rate

$22,800

2026-27 rate

$33,600

2026-27 rate · Upper School

$22,850

2026-27 rate

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
  • Application fee: $75
  • Registration fee: $350
  • Tuition deposit: $500
  • Freshman fee (orientation camp): $350 (freshmen)
  • Senior fee (graduation + retreat): $300 (seniors)
  • Books:
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

No itemized fees published.

Sibling discount$2,000/yr per sibling after the firstNot PublishedNot PublishedNot Published
Lower school on campusHS onlyHS only
Yes

PK3–12

HS only
Open houseDec 6, 2026Nov 8, 2026Nov 1, 2026Nov 7, 2026
Required test
ISEE

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

ISEE

Offered on campus: Jan 9, 2027

ISEE
ISEE (or CLT for classical-school students)
Application deadlineJan 15, 2027Dec 14, 2026Not postedJan 15, 2027
Decision dateMar 5, 2027Mar 5, 2027Not postedNot posted
Financial aid
Need-based + Merit
Need-based + Merit
Need-based + Merit
Need-based + Merit
AP courses211820Not posted
Enrollment791248300Not Published
Student:Teacher9:18.3:18.1:1Not Published
Mass
Monthly
Monthly
Not Published
Daily
Sports12 sports10 sports12 sports11 sports
Links

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