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Academics

Entrance Exam

  • 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))
  • 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.)

AP Courses

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

Dual Credit

  • St. ThomasYes (4 dual-credit courses via University of St. Thomas)
  • St. AgnesNot Published
  • 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)

Recommendations

  • 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)
  • DuchesneEnglish and/or Math teacher + principal/head of school; 2 years transcripts
  • St. Peter CTHSNot Published

Honors Courses

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

World Languages

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

AP Exams Scored 3+

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

Application Deadline

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

Career & Technical Pathways

  • St. ThomasNot Published
  • St. AgnesNot Published
  • 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.)

Language Credits Required

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

Learning Support

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

Notable Programs

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

Robotics

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

Test Score Deadline

  • St. ThomasNot Published
  • St. Agnes2027-02-01
  • DuchesneNot Published
  • St. Peter CTHSNot Published
Commute from home
Tuition
$27,900

2026-27 rate

$28,400

2026-27 rate

$33,600

2026-27 rate · Upper School

$15,000

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

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 ($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
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, 2026Not postedNov 1, 2026Not posted
Required test
ISEE

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

ISEE

Offered on campus: Nov 14, 2026

ISEE
None
Application deadlineJan 15, 2027Not postedNot postedNot posted
Decision dateMar 5, 2027Not postedNot postedNot posted
Financial aid
Need-based + Merit
Need-based

No merit scholarships

Need-based + Merit
Need-based
AP courses212520Not posted
Enrollment79193430026
Student:Teacher9:19:18.1:1Not Published
Mass
Monthly
Weekly

Thursdays, 9:10 AM

Not Published
Monthly
Sports12 sports12 sports12 sportsNot posted
Links

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