Mary Star of the Sea High Sch

San Pedro · Los Angeles County · Private (Catholic)
Private Los Angeles County ~69 seniors
📄 Shareable scorecard →

Compare with peers

Most similar nearby schools

Saint Anthony High School → Junipero Serra High School → Saint Paul High School → Valley Christian High School → Verbum Dei High School → Compare all similar →

Enrollment trend & projection

Total enrollment (9–12)
514 (2020)407 (2025)
-20.8%
Grade 12 (graduating class)
149 (2020)83 (2025)
-44.3%

If this trend holds (-4.6%/yr, Total enrollment)

At tuition of $ / student:

Horizon Projected Total enrollment Change Tuition impact / yr
1 yr (2026) ~388 -19 $0
3 yr (2028) ~354 -53 $0
5 yr (2030) ~322 -85 $0

Straight-line extrapolation of the recent annual rate — a what-if, not a forecast of intent. Edit the figure to match your school.

Diocesan context — Archdiocese of Los Angeles

Archdiocese
Counties covered
Los Angeles, Ventura, Santa Barbara
Schools operated (K–12)
~210
approx; from diocesan reports
Other Catholic HS tracked
44
in this diocese, on this site

Largest Catholic school system in the U.S. Archdiocese of Los Angeles is the canonical governance body for Catholic schools in this region — board policy, tuition guidance, and shared services typically originate here. Visit the diocesan website →

Financial figures aren't shown because Catholic (arch)dioceses don't file IRS Form 990 — they're covered by the USCCB Group Ruling (GEN 0928), which exempts dioceses, parishes, and parochial schools from individual filing. School counts above are hand-compiled from each diocese's published schools-department information.

University of California outcomes · Class of 2024
UC Reach
10%
7 admits / 69 seniors
-15.6 pp vs. peer median (25.7%) · Ranked #10 of 11 similar schools
Where this sits on the California curve
CA median
18.6%
Peer median
25.7%
Top 10%
53.4%
This school
10.1%
0%50%100%
CA median 18.6% Top 10% ≥ 53.4% This school 10.1%

Higher than 20% of California high schools (1142 ranked, ≥50 seniors)

📊 What this number means

Mary Star of the Sea High Sch's UC Reach of 10.1% is below the California median (18.6%). The top 10% of CA schools achieve 53.4% or higher.

Overall, Mary Star of the Sea High Sch's UC Reach is higher than 20% of California high schools (1142 ranked).

UC Application Reach
76.8%
53 applications
In context: CA median 79.7% · Top 10% statewide ≥ 243.8% · Los Angeles Co. Top 10% ≥ 246.2% · higher than 48% of CA HS.
UC Admit Rate
13.2%
7 / 53 applications
In context: CA median 26.6% · Top 10% statewide ≥ 39.9% · higher than 0% of CA HS.
UC Yield Rate
N/A
None enrolled of 7 admitted
Yield vs. Enrollment Reach: Yield answers "of UC admits, what % chose UC?" — denominator is just the admits. A small admitted cohort can post a low yield even when the school sends a healthy share of its class to UC.
UC Enrollment Reach
N/A
None enrollees / 69 seniors
Enrollment Reach vs. Yield: Reach answers "of the whole senior class, what % ended up at UC?" — denominator is everyone. High Yield with low Enrollment Reach is common at elite privates: most admits matriculate, but the school sends most of its class to non-UC selective colleges.
Selective UC Reach (UCSD, UCSB, UCI, UCD)
10.1
per 100 seniors · campus-level total
In context: CA median 15.8 · Top 10% statewide ≥ 42.3 · higher than 26% of CA HS.
Elite UC Reach (UCB + UCLA)
N/A
Senior Class Size
69
Private School Affidavit
Total School Enrollment
362
All grades · Private School Affidavit

Private-school figures come from the California Private School Affidavit. Per CDE, inclusion in private-school data is not an evaluation, approval, or endorsement of a school.

Mary Star of the Sea High Sch — Enrollment & Outcomes Snapshot

Private · Catholic · San Pedro · vs. 10 most similar nearby schools

  • On UC Reach, Mary Star of the Sea High Sch sits near the bottom of its similar-school group (ranked #10 of 11): 10% vs. a peer median of 26%.
  • Senior-class enrollment is down 44% (149→83 from 2020 to 2025), trailing the peer-group median of -12%.
  • At its recent rate (-4.6%/yr), enrollment projects to ~354 by 2028 — about 53 fewer students than today.

Enrollment projection

407 students (2025)
~354 projected (2028)
at -4.6%/yr

That's about 53 fewer students. At a tuition of $ per student, that's roughly $0 in annual tuition revenue at risk.

Estimate seeded by catholic private school typical — Catholic HS typical $10k–18k. NCES doesn't publish per-school tuition; adjust to your school's actual figure. Projection extrapolates the recent annual rate — not a forecast of intent.

Your school vs. its 10 most similar nearby schools

School Type Size UC Reach Enroll. trend
Mary Star of the Sea High Sch Private · Catholic 407 10.1% -44%
Peer-group median 25.7% -12%
Saint Anthony High School Private · Catholic 422 12.9% -15%
Junipero Serra High School Private · Catholic 367 18.3% +6%
Saint Paul High School Private · Catholic 405 38.1% -25%
Valley Christian High School Private · Other religious 527 16.1% +29%
Verbum Dei High School Private · Catholic 298 21.1% -20%
Saint Joseph High School Private · Catholic 557 30.3% -10%
Cantwell/Sacred Heart Mary Hs Private · Catholic 378 40.3% -4%
Saint Monica Catholic Hs Private · Catholic 367 57.8% +17%
Whittier Christian High School Private · Other religious 410 6.4% -30%
Don Bosco Technical Institute Private · Catholic 351 34.3% -30%

UC Reach = top-6 UC admits ÷ senior class (can exceed 100% when students are admitted to multiple campuses). Enrollment trend = first-to-latest grade-12 change on file. Similar schools matched on proximity, size, type, and religious orientation. Methodology →

Avg. Applicant GPA · top-6 UCs
4.01

Admit rate vs. CA peer average, by campus

How does this school's admit rate at each UC compare to other CA schools whose applicant pool averages the same GPA?

Campus Applicant GPA (avg) Actual admit rate CA peer avg Δ Verdict
UC San Diego 4.07 30.0% 18.2% +11.8pp Over
UC Santa Barbara 3.79 40.0% 27.4% +12.6pp Over
"Applicant GPA" is the average GPA of this school's UC applicant pool — not an individual student GPA. "CA peer avg" is the application-weighted statewide admit rate at this school-pool GPA, fit separately per campus. At any given pool GPA, real admit rates span widely (UCSD ranges 8% → 65% across CA schools) because UCs use comprehensive review — context-of-opportunity, geography, demographics, and applicant essays all weigh in beyond GPA. A large negative residual flags this school is admitted at a meaningfully lower rate than other CA schools at the same pool GPA — not that students here were "rejected at expected rate X." "Over" / "Under" use a ±5-point band. Campuses with fewer than 5 applicants are omitted.

Campus Breakdown — 2024

Campus Applicants Admits Enrollees Admit Rate UC Reach Yield Avg GPA (App) Avg GPA (Adm)
UC Berkeley → Elite 7 4.08
UCLA → Elite 13 4.09
UC San Diego → Selective 10 3 30.0% 4.3% 4.07
UC Santa Barbara → Selective 10 4 40.0% 5.8% 3.79
UC Irvine → Selective 13 4.00
UC Davis →
⚠ Campus-level totals may count one student admitted to multiple UC campuses more than once. Admit Volume metrics are not the same as UC Reach, which requires unique-student counts. See methodology →

What This Means

A large share of the senior class applies to UC, indicating strong college-going culture and UC pipeline development.
A large share of the class applies to UC, so the admit rate runs lower than the application volume alone might suggest — expected when many students apply broadly, including to reach campuses. UC Reach (which credits every admit relative to the class) is the truer read of how the class fares: a strong Reach alongside a moderate admit rate is healthy, not a contradiction.
Fewer than 15% of seniors are earning UC admission. This may reflect a high non-UC college-going rate, significant A-G completion gaps, or an early-stage UC pipeline. A deeper review of A-G readiness and counseling capacity is warranted.
Note: admit counts used here are campus-level totals. A student admitted to both UCLA and UCSD is counted twice. When UCOP unique-student data becomes available it will be loaded automatically and the labels will update.
Compare with other schools → See Los Angeles County rankings →

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