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Academics

Entrance Exam

  • 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)
  • 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.)
  • 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.)

AP Courses

  • St. Agnes25
  • Duchesne20 (AP enrollment caps: soph 1 / jr 2 / sr 3; AP exam required if enrolled)
  • O'Connell3 (Confirmed via school event calendar: AP Calculus, AP Physics 1, AP Physics C. Not on an academics/curriculum page — count may be incomplete.)
  • CathedralNot Published

Dual Credit

  • St. AgnesNot Published
  • DuchesneYes (University of St. Thomas partnership; online electives via SophieConnect + One Schoolhouse)
  • O'ConnellYes (Via Galveston College: English III/IV, US History, Government, Spanish I/II, German IV (TSI test required))
  • CathedralYes (University of St. Thomas partnership (est. June 2023))

Recommendations

  • St. AgnesEnglish + Math teachers (due Jan 14, 2027)
  • DuchesneEnglish and/or Math teacher + principal/head of school; 2 years transcripts
  • O'ConnellNot Published
  • CathedralMath, English + Administrator (HAIS forms); transcripts 3 prior years; student essay

World Languages

  • St. AgnesNot Published
  • DuchesneFrench (incl. Advanced IV-DELF B1) · Spanish (incl. AP) · American Sign Language I-III
  • O'ConnellSpanish I-III · German (IV dual credit) · American Sign Language I-III
  • CathedralLatin I-IV · Greek I-II · Modern language elective (Years 3-4)

Honors Courses

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

Notable Programs

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

Academic Model

  • St. AgnesNot Published
  • DuchesneNot Published
  • O'ConnellNot 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.)

AP Exams Scored 3+

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

Family Interview

  • St. AgnesNot Published
  • DuchesneNot Published
  • O'ConnellNot Published
  • CathedralYes (Family interview at the school — parents and student)

Language Credits Required

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

Learning Support

  • St. AgnesNot Published
  • DuchesneNot Published
  • O'ConnellNot Published
  • CathedralLearning Enrichment Center — an individual learning plan for every student; tutoring, accommodations and testing support

Robotics

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

Test Score Deadline

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

2026-27 rate

$33,600

2026-27 rate · Upper School

$9,100

2025-26 rate (newest published)

$22,850

2026-27 rate

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
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 see fees
  • Registration fee: $450
  • Technology fee: $200
  • Sports fee: $150–$250 (per sport ($450 all-season package)) — optional
Fees listed separately

No itemized fees published.

Sibling discountNot PublishedNot PublishedMulti-student assistance available (amount not published)Not Published
Lower school on campusHS only
Yes

PK3–12

HS onlyHS only
Open houseNot postedNov 1, 2026Not postedNov 7, 2026
Required test
ISEE

Offered on campus: Nov 14, 2026

ISEE
In-house placement test
ISEE (or CLT for classical-school students)
Application deadlineNot postedNot postedNot postedJan 15, 2027
Decision dateNot postedNot postedNot postedNot posted
Financial aid
Need-based

No merit scholarships

Need-based + Merit
Need-based + Merit
Need-based + Merit
AP courses25203Not posted
Enrollment93430080Not Published
Student:Teacher9:18.1:14.5:1Not Published
Mass
Weekly

Thursdays, 9:10 AM

Not Published
Monthly
Daily
Sports12 sports12 sports13 sports11 sports
Links

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