Compare Schools

Pick up to 4 schools to see them side by side.

Clear all

4 of 4 selected

Explore by category

Pick a category to see everything these schools publish about it, side by side.

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.)
  • 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.)
  • 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)

World Languages

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

AP Courses

  • St. Catherine'sNot Published
  • O'ConnellNot Published
  • St. Agnes25
  • Duchesne20 (AP enrollment caps: soph 1 / jr 2 / sr 3; AP exam required if enrolled)

Dual Credit

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

Honors Courses

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

Notable Programs

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

Recommendations

  • St. Catherine'sNot Published
  • O'ConnellNot Published
  • St. AgnesEnglish + Math teachers (due Jan 14, 2027)
  • DuchesneEnglish and/or Math teacher + principal/head of school; 2 years transcripts

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

AP Exams Scored 3+

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

Language Credits Required

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

Robotics

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

Test Score Deadline

  • St. Catherine'sNot Published
  • O'ConnellNot Published
  • St. Agnes2027-02-01
  • DuchesneNot Published
Commute from home
Tuition
$20,560

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

$9,100

2025-26 rate (newest published)

$28,400

2026-27 rate

$33,600

2026-27 rate · Upper School

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
  • Registration fee: $450
  • Technology fee: $200
  • Sports fee: $150–$250 (per sport ($450 all-season package)) — 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
Sibling discount10% off for each younger siblingMulti-student assistance available (amount not published)Not PublishedNot Published
Lower school on campus
Yes

14 months–12th (Montessori)

HS onlyHS only
Yes

PK3–12

Open houseNot postedNot postedNot postedNov 1, 2026
Required test
None
In-house placement test
ISEE

Offered on campus: Nov 14, 2026

ISEE
Application deadlineJan 15, 2027Not postedNot postedNot posted
Decision dateMar 5, 2027Not postedNot postedNot posted
Financial aid
Need-based
Need-based + Merit
Need-based

No merit scholarships

Need-based + Merit
AP coursesNot postedNot posted2520
Enrollment2380934300
Student:Teacher14.4:14.5:19:18.1:1
Mass
Monthly
Monthly
Weekly

Thursdays, 9:10 AM

Not Published
Sports6 sports13 sports12 sports12 sports
Links

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