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Dual Credit

Entrance Exam

St. ThomasISEE (School code 571055; freshmen. Transfers: ISEE or PSAT.)
St. Pius XISEE (School code 571082; 9th-grade applicants. Transfers submit PSAT/SAT/ACT. School offers an ISEE prep course. Application opens Sept 1.)
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.)

Learning Support

St. ThomasLearning Enrichment Center; college counseling with 4-year plan
St. Pius XPaul A. Gilliam '98 Learning for Success program — structured academic support ($2,500/yr)
CathedralLearning Enrichment Center — an individual learning plan for every student; tutoring, accommodations and testing support

Recommendations

St. ThomasMath + English teachers (HAIS forms, after Dec 1); student statement + resume; report cards gr 6-8
St. Pius XMath + English teachers, Principal/Counselor; student essay; transcripts
CathedralMath, English + Administrator (HAIS forms); transcripts 3 prior years; student essay

World Languages

Academic Model

St. ThomasNot Published
St. Pius XNot 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 Courses

Application Deadline

St. Thomas2027-01-15 (Opens Aug 3, 2026; supporting docs due Jan 31; rolling after)
St. Pius XNot Published
CathedralNot Published

Family Interview

Honors & AP Courses

Notable Programs

St. ThomasNot Published
St. Pius X"Engineer Your World I & II," Computer Science; electives in Business, Law, Psychology, Media Arts
CathedralNot Published

Commute from home

	St. Thomas High School	St. Pius X High School	Cathedral High School
Tuition	$27,900 2026-27 rate	$22,850 2026-27 rate	$22,850 2026-27 rate
What's included	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 (new students): $350 Graduation fee (seniors): $280 (seniors) Athletics fee: $150–$350 (per sport) — optional Learning for Success program: $2,500 (if enrolled in program) — optional Bus transportation: $1,550 — optional	Fees listed separately No itemized fees published.
Sibling discount	$2,000/yr per sibling after the first	Half tuition for a 3rd concurrently enrolled child	Not Published
Lower school on campus	HS only	HS only	HS only
Open house	Dec 6, 2026	Not posted	Nov 7, 2026
Required test	ISEE Offered on campus: Nov 14, 2026 · Jan 9, 2027	ISEE	ISEE (or CLT for classical-school students)
Application deadline	Jan 15, 2027	Not posted	Jan 15, 2027
Decision date	Mar 5, 2027	Not posted	Not posted
Financial aid	Need-based + Merit	Need-based + Merit	Need-based + Merit
AP courses	21	Not posted	Not posted
Enrollment	791	655	Not Published
Student:Teacher	9:1	7:1	Not Published
Mass	Monthly	Monthly	Daily
Sports	12 sports	14 sports	11 sports
Links	Full profile Admissions	Full profile Admissions	Full profile Admissions

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