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Academics

Entrance Exam

  • St. AgnesISEE (School code 443420; up to 2 scores; first attempt before Dec 1 (ERB rule))
  • St. ThomasISEE (School code 571055; freshmen. Transfers: ISEE or PSAT.)
  • O'ConnellIn-house placement test (No ISEE/HSPT — 30-60 min Math & Reading placement test, offered Mon-Thu 8:30-2:30. Rolling admissions, no published deadlines.)
  • DuchesneISEE (Administered externally; campus tour + family interview also required)

AP Courses

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

Dual Credit

  • St. AgnesNot Published
  • St. ThomasYes (4 dual-credit courses via University of St. Thomas)
  • O'ConnellYes (Via Galveston College: English III/IV, US History, Government, Spanish I/II, German IV (TSI test required))
  • DuchesneYes (University of St. Thomas partnership; online electives via SophieConnect + One Schoolhouse)

Recommendations

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

World Languages

  • St. AgnesNot Published
  • St. ThomasFrench · Spanish · Mandarin · Latin
  • O'ConnellSpanish I-III · German (IV dual credit) · American Sign Language I-III
  • DuchesneFrench (incl. Advanced IV-DELF B1) · Spanish (incl. AP) · American Sign Language I-III

Honors Courses

  • St. Agnes12
  • St. ThomasNot Published
  • O'ConnellNot Published
  • Duchesne12 (Called "Advanced" courses)

Notable Programs

  • St. AgnesNot Published
  • St. ThomasNot Published
  • O'ConnellSTEAM electives: Robotics, Computer Science, Esports, Horticulture, Graphic Design; Honors Engineering I & II; A La Carte program for homeschoolers
  • DuchesneRobotics and competitive debate programs; IT internship with Microsoft certification; junior Research Paper requirement

AP Exams Scored 3+

  • St. Agnes97 (% of AP exams scored 3+)
  • St. ThomasNot Published
  • O'ConnellNot Published
  • DuchesneNot Published

Application Deadline

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

Language Credits Required

  • St. Agnes2
  • St. ThomasNot Published
  • O'ConnellNot Published
  • DuchesneNot Published

Learning Support

  • St. AgnesNot Published
  • St. ThomasLearning Enrichment Center; college counseling with 4-year plan
  • O'ConnellNot Published
  • DuchesneNot Published

Robotics

  • St. AgnesSpectrum 3847 — 12 consecutive FIRST Championship appearances
  • St. ThomasNot Published
  • O'ConnellNot Published
  • DuchesneNot Published

Test Score Deadline

  • St. Agnes2027-02-01
  • St. ThomasNot Published
  • O'ConnellNot Published
  • DuchesneNot Published
Commute from home
Tuition
$28,400

2026-27 rate

$27,900

2026-27 rate

$9,100

2025-26 rate (newest published)

$33,600

2026-27 rate · Upper School

What's included
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
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: $450
  • Technology fee: $200
  • Sports fee: $150–$250 (per sport ($450 all-season package)) — 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
Sibling discountNot Published$2,000/yr per sibling after the firstMulti-student assistance available (amount not published)Not Published
Lower school on campusHS onlyHS onlyHS only
Yes

PK3–12

Open houseNot postedDec 6, 2026Not postedNov 1, 2026
Required test
ISEE

Offered on campus: Nov 14, 2026

ISEE

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

In-house placement test
ISEE
Application deadlineNot postedJan 15, 2027Not postedNot posted
Decision dateNot postedMar 5, 2027Not postedNot posted
Financial aid
Need-based

No merit scholarships

Need-based + Merit
Need-based + Merit
Need-based + Merit
AP courses2521Not posted20
Enrollment93479180300
Student:Teacher9:19:14.5:18.1:1
Mass
Weekly

Thursdays, 9:10 AM

Monthly
Monthly
Not Published
Sports12 sports12 sports13 sports12 sports
Links

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