Enrollment & Outcomes Scorecard
Marlborough School
Private · secular · Los Angeles · Los Angeles County · 546 students · Class of 2025
★ Top 10% UC Reach
UC Reach Score · Class of 2025
64
Excellent
top 6% in California
Higher than 95% of California high schools
+13.8 pp above peer median (50)
· Ranked #5 of 11 similar schools
5-year UC Reach Score
2021 · 60
2025 · 64
+29%
Senior-class enrollment (2020–2025)
+29.4 pp
vs. Los Angeles County baseline (-0%)
~546
5-yr projected enrollment (+0.0%/yr)
- ▸On UC Reach Score, Marlborough School sits in the middle of its similar-school group (ranked #5 of 11): 64 vs. a peer median of 50.
- ▸Marlborough School's UC Reach Score has declined meaningfully from a peak of 78 in 2024 to 64 in 2025 — a 14-point drop that warrants attention. Multi-year UC Reach declines of this size often signal something specific (leadership change, comp-program shift, demographic move) rather than year-to-year noise. This is the kind of trajectory an Enrollment Trend Audit unpacks.
- ▸Senior-class enrollment is up 29% (86→111 from 2020 to 2025), outpacing the peer-group median of +14%.
Most similar nearby schools
| School | Type | UC Reach Score | Enroll. |
|---|---|---|---|
| New Roads School | Private · secular | 65 | +4% |
| Geffen Academy at UCLA | Private · secular | 121 | +21% |
| Westridge School for Girls | Private · secular | 104 | +19% |
| Windward School | Private · secular | 77 | +8% |
| Archer School for Girls | Private · secular | 45 | -10% |
| Cathedral High School | Private · Other religious | 14 | -20% |
UC Reach = top-6 UC admits ÷ senior class. Sources: UCOP Admissions by Source School, CDE enrollment, IRS Form 990, NCES F-33. Reach — by Test Prep Gurus · Methodology
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