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Academics

Entrance Exam

  • St. AgnesISEE (School code 443420; up to 2 scores; first attempt before Dec 1 (ERB rule))
  • FrassatiHSPT or ISEE (Either test is accepted. On-campus HSPT: Jan 9 + Jan 23, 2027. ERB member 571107. Transfers may substitute PSAT.)
  • St. Catherine'sNone (No admission test. Inquiry → adults-only tour → director meeting → application ($150) + records + lesson samples → student classroom visit. 9th graders enter the Adolescent Community (gr 7-9); High School entry is gr 10-12.)
  • 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.)

World Languages

  • St. AgnesNot Published
  • FrassatiFrench (through AP; Bordeaux/Lourdes exchange) · Spanish (through AP)
  • St. Catherine'sSpanish · Latin/French/ASL/Portuguese via independent study & university partnerships
  • O'ConnellSpanish I-III · German (IV dual credit) · American Sign Language I-III

Dual Credit

  • St. AgnesNot Published
  • FrassatiYes (University of St. Thomas (one course/yr) + Catholic University of America (entrepreneurship))
  • St. Catherine'sNot Published
  • O'ConnellYes (Via Galveston College: English III/IV, US History, Government, Spanish I/II, German IV (TSI test required))

Notable Programs

  • St. AgnesNot Published
  • FrassatiPhysics-first science sequence; Ethics & Culture department; House System
  • St. Catherine'sNot Published
  • O'ConnellSTEAM electives: Robotics, Computer Science, Esports, Horticulture, Graphic Design; Honors Engineering I & II; A La Carte program for homeschoolers

Recommendations

  • St. AgnesEnglish + Math teachers (due Jan 14, 2027)
  • Frassati3 — Principal/Counselor, English, Math (via FACTS); transcripts 6th-8th
  • St. Catherine'sNot Published
  • O'ConnellNot Published

Academic Model

  • St. AgnesNot Published
  • FrassatiNot Published
  • St. Catherine'sAMI-accredited Catholic Montessori adolescent program — four integrated areas (Theology, Integrated Humanities, Integrated Sciences, Mathematics); internships (Houston Methodist, law/design firms), university partnerships (St. Thomas, Texas A&M AgriLife), independent study; graduates build a "body of work" (No AP program; university partnerships and internships serve the advanced-work role.)
  • O'ConnellNot Published

AP Courses

  • St. Agnes25
  • FrassatiNot Published
  • St. Catherine'sNot Published
  • O'ConnellNot Published

AP Exams Scored 3+

  • St. Agnes97 (% of AP exams scored 3+)
  • FrassatiNot Published
  • St. Catherine'sNot Published
  • O'ConnellNot Published

Family Interview

  • St. AgnesNot Published
  • FrassatiYes (~30 min, student + parents with faculty — Jan 23 (8am-3pm) or Jan 28 (3-5pm), 2027; signups Nov 2026.)
  • St. Catherine'sNot Published
  • O'ConnellNot Published

Honors Courses

  • St. Agnes12
  • FrassatiNot Published
  • St. Catherine'sNot Published
  • O'ConnellNot Published

Language Credits Required

  • St. Agnes2
  • FrassatiNot Published
  • St. Catherine'sNot Published
  • O'ConnellNot Published

Robotics

  • St. AgnesSpectrum 3847 — 12 consecutive FIRST Championship appearances
  • FrassatiNot Published
  • St. Catherine'sNot Published
  • O'ConnellNot Published

Test Score Deadline

  • St. Agnes2027-02-01
  • FrassatiNot Published
  • St. Catherine'sNot Published
  • O'ConnellNot Published
Commute from home
Tuition
$28,400

2026-27 rate

$24,050

2026-27 rate

$20,560

2026-27 rate · 9th grade; grades 10-12: $20,753

$9,100

2025-26 rate (newest published)

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
  • Technology fee ($500)
  • Registration ($300)
  • Student activities ($400)
  • Textbooks ($650)

Charged separately:

  • Application fee: $75–$125
  • Enrollment deposit (new families): $700
  • Athletics & Fine Arts fee: $250 (per sport/season) — optional
Fees listed separately see fees
  • Application fee: $150
  • Tuition deposit: $750
  • New Student Fee: $850
  • Facility fee: $800
  • Program fee: $2,500–$2,750
Fees listed separately see fees
  • Registration fee: $450
  • Technology fee: $200
  • Sports fee: $150–$250 (per sport ($450 all-season package)) — optional
Sibling discountNot Published$3,000 off 2nd student; $9,425 off 3rd (tuition only)10% off for each younger siblingMulti-student assistance available (amount not published)
Lower school on campusHS onlyHS only
Yes

14 months–12th (Montessori)

HS only
Open houseNot postedOct 28, 2026Not postedNot posted
Required test
ISEE

Offered on campus: Nov 14, 2026

HSPT or ISEE

Offered on campus: Jan 9, 2027 · Jan 23, 2027

None
In-house placement test
Application deadlineNot postedNot postedJan 15, 2027Not posted
Decision dateNot postedNot postedMar 5, 2027Not posted
Financial aid
Need-based

No merit scholarships

Need-based
Need-based
Need-based + Merit
AP courses25Not postedNot postedNot posted
Enrollment9343642380
Student:Teacher9:111:114.4:14.5:1
Mass
Weekly

Thursdays, 9:10 AM

Weekly

Thursdays, 9:15 AM

Monthly
Monthly
Sports12 sports13 sports6 sports13 sports
Links

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