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Academics

Entrance Exam

  • DuchesneISEE (Administered externally; campus tour + family interview also required)
  • St. Peter CTHSNone (No ISEE/HSPT. Inquiry → tour → FACTS application; English + Math recommendations + transcript. Last cycle: due Jan 15, decisions Mar 6, reply Mar 25.)
  • St. ThomasISEE (School code 571055; freshmen. Transfers: ISEE or PSAT.)
  • St. AgnesISEE (School code 443420; up to 2 scores; first attempt before Dec 1 (ERB rule))

AP Courses

  • Duchesne20 (AP enrollment caps: soph 1 / jr 2 / sr 3; AP exam required if enrolled)
  • St. Peter CTHSNot Published
  • St. Thomas21 (40+ advanced/AP courses overall)
  • St. Agnes25

Dual Credit

  • DuchesneYes (University of St. Thomas partnership; online electives via SophieConnect + One Schoolhouse)
  • St. Peter CTHSYes (Houston Community College partnership — pathway courses at St. Peter and two HCC campuses; school provides transport during the school day)
  • St. ThomasYes (4 dual-credit courses via University of St. Thomas)
  • St. AgnesNot Published

Recommendations

  • DuchesneEnglish and/or Math teacher + principal/head of school; 2 years transcripts
  • St. Peter CTHSNot Published
  • St. ThomasMath + English teachers (HAIS forms, after Dec 1); student statement + resume; report cards gr 6-8
  • St. AgnesEnglish + Math teachers (due Jan 14, 2027)

Honors Courses

  • Duchesne12 (Called "Advanced" courses)
  • St. Peter CTHSNot Published
  • St. ThomasNot Published
  • St. Agnes12

World Languages

  • DuchesneFrench (incl. Advanced IV-DELF B1) · Spanish (incl. AP) · American Sign Language I-III
  • St. Peter CTHSNot Published
  • St. ThomasFrench · Spanish · Mandarin · Latin
  • St. AgnesNot Published

AP Exams Scored 3+

  • DuchesneNot Published
  • St. Peter CTHSNot Published
  • St. ThomasNot Published
  • St. Agnes97 (% of AP exams scored 3+)

Application Deadline

  • DuchesneNot Published
  • St. Peter CTHSNot Published
  • St. Thomas2027-01-15 (Opens Aug 3, 2026; supporting docs due Jan 31; rolling after)
  • St. AgnesNot Published

Career & Technical Pathways

  • DuchesneNot Published
  • St. Peter CTHSBusiness · Construction · Education · Information Technology · Health Sciences (The school describes itself as the first Catholic career and technical high school in Texas, and the second in the United States. Graduates earn a diploma plus a Level 1 industry certification, with a possible HCC associate degree and job placement with partner businesses.)
  • St. ThomasNot Published
  • St. AgnesNot Published

Language Credits Required

  • DuchesneNot Published
  • St. Peter CTHSNot Published
  • St. ThomasNot Published
  • St. Agnes2

Learning Support

  • DuchesneNot Published
  • St. Peter CTHSNot Published
  • St. ThomasLearning Enrichment Center; college counseling with 4-year plan
  • St. AgnesNot Published

Notable Programs

  • DuchesneRobotics and competitive debate programs; IT internship with Microsoft certification; junior Research Paper requirement
  • St. Peter CTHSNot Published
  • St. ThomasNot Published
  • St. AgnesNot Published

Robotics

  • DuchesneNot Published
  • St. Peter CTHSNot Published
  • St. ThomasNot Published
  • St. AgnesSpectrum 3847 — 12 consecutive FIRST Championship appearances

Test Score Deadline

  • DuchesneNot Published
  • St. Peter CTHSNot Published
  • St. ThomasNot Published
  • St. Agnes2027-02-01
Commute from home
Tuition
$33,600

2026-27 rate · Upper School

$15,000

2026-27 rate · most families pay far less after aid

$27,900

2026-27 rate

$28,400

2026-27 rate

What's included
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.

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 ($125 for transfer applicants)
  • Enrollment deposit: $500
  • Tablet PC (technology): $1,725
  • AP test fee: $105 (per AP / Honors-AP class) — optional
  • Senior fee: $350 (seniors only) — optional
  • Athletics fee: $150 (per sport) — optional
Sibling discountNot PublishedNot Published$2,000/yr per sibling after the firstNot Published
Lower school on campus
Yes

PK3–12

HS onlyHS onlyHS only
Open houseNov 1, 2026Not postedDec 6, 2026Not posted
Required test
ISEE
None
ISEE

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

ISEE

Offered on campus: Nov 14, 2026

Application deadlineNot postedNot postedJan 15, 2027Not posted
Decision dateNot postedNot postedMar 5, 2027Not posted
Financial aid
Need-based + Merit
Need-based
Need-based + Merit
Need-based

No merit scholarships

AP courses20Not posted2125
Enrollment30026791934
Student:Teacher8.1:1Not Published9:19:1
MassNot Published
Monthly
Monthly
Weekly

Thursdays, 9:10 AM

Sports12 sportsNot posted12 sports12 sports
Links

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