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Academics

Entrance Exam

  • 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.)
  • St. John XXIIIISEE (School code 570048; 9th grade. 11th/12th transfers submit PSAT. Last cycle: opened Sept 1, deadline Jan 15, docs Jan 31, rolling after.)
  • FrassatiHSPT or ISEE (Either test is accepted. On-campus HSPT: Jan 9 + Jan 23, 2027. ERB member 571107. Transfers may substitute 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.)

World Languages

  • St. Catherine'sSpanish · Latin/French/ASL/Portuguese via independent study & university partnerships
  • St. John XXIIISpanish (confirmed via Spanish NHS; full list not published)
  • FrassatiFrench (through AP; Bordeaux/Lourdes exchange) · Spanish (through AP)
  • O'ConnellSpanish I-III · German (IV dual credit) · American Sign Language I-III

Dual Credit

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

Notable Programs

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

Recommendations

  • St. Catherine'sNot Published
  • St. John XXIIITeacher recommendations (school forms) + official transcripts; interviews for transfers only
  • Frassati3 — Principal/Counselor, English, Math (via FACTS); transcripts 6th-8th
  • O'ConnellNot Published

Academic Model

  • 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.)
  • St. John XXIIINot Published
  • FrassatiNot Published
  • O'ConnellNot Published

AP Courses

  • St. Catherine'sNot Published
  • St. John XXIIINot Published
  • FrassatiNot Published
  • 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.)

AP Program

  • St. Catherine'sNot Published
  • St. John XXIIIAP and honors coursework offered (count not published; Course Selection Guide not public)
  • FrassatiNot Published
  • O'ConnellNot Published

Family Interview

  • St. Catherine'sNot Published
  • St. John XXIIINot Published
  • FrassatiYes (~30 min, student + parents with faculty — Jan 23 (8am-3pm) or Jan 28 (3-5pm), 2027; signups Nov 2026.)
  • O'ConnellNot Published
Commute from home
Tuition
$20,560

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

$22,100

2026-27 rate

$24,050

2026-27 rate

$9,100

2025-26 rate (newest published)

What's included
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
  • New Student Enrollment Fee: $500
  • Financial aid application (Clarity): $60 — 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
  • Registration fee: $450
  • Technology fee: $200
  • Sports fee: $150–$250 (per sport ($450 all-season package)) — optional
Sibling discount10% off for each younger sibling2nd student $17,680 ($4,420 off)$3,000 off 2nd student; $9,425 off 3rd (tuition only)Multi-student assistance available (amount not published)
Lower school on campus
Yes

14 months–12th (Montessori)

HS onlyHS onlyHS only
Open houseNot postedNot postedOct 28, 2026Not posted
Required test
None
ISEE
HSPT or ISEE

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

In-house placement test
Application deadlineJan 15, 2027Not postedNot postedNot posted
Decision dateMar 5, 2027Not postedNot postedNot posted
Financial aid
Need-based
Need-based + Merit
Need-based
Need-based + Merit
AP coursesNot postedNot postedNot posted3
Enrollment2343236480
Student:Teacher14.4:111.3:111:14.5:1
Mass
Monthly
Weekly

Daily Mass also offered

Weekly

Thursdays, 9:15 AM

Monthly
Sports6 sports13 sports13 sports13 sports
Links

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