Enrollment & Outcomes Scorecard
Castilleja School
Private · secular · Palo Alto · Santa Clara County · 416 students · Class of 2025
★ Elite — Top 1%
🏆 #4 in California
UC Reach · Class of 2025
114%
Higher than 99% of California high schools
+53.3 pp above peer median (60.4%)
· Ranked #2 of 10 similar schools
5-year UC Reach
2021 · 62.5%
2025 · 113.7%
-15%
Senior-class enrollment (2020–2025)
-12.6 pp
vs. Santa Clara County baseline (-2%)
~408
5-yr projected enrollment (8 fewer than today)
- ▸On UC Reach, Castilleja School sits near the top of its similar-school group (ranked #2 of 10): 114% vs. a peer median of 60%.
- ▸Its UC Reach has risen 27 points since 2020.
- ▸Senior-class enrollment is down 15% (60→51 from 2020 to 2025), trailing the peer-group median of +8%.
- ▸At its recent rate (-0.7%/yr), enrollment projects to ~408 by 2028 — about 8 fewer students than today.
Most similar nearby schools
| School | Type | UC Reach | Enroll. |
|---|---|---|---|
| Pinewood School | Private · secular | 60.4% | +0% |
| Eastside College Prep School | Private · secular | 26.3% | -5% |
| Crystal Springs Uplands Sch | Private · secular | 49.5% | +11% |
| Basis Independent Fremont Upper Sch | Private · secular | 212.5% | +23% |
| Woodside Priory School | Private · Other religious | 70.3% | +14% |
| Menlo School | Private · secular | 62.4% | +6% |
UC Reach = top-6 UC admits ÷ senior class. Sources: UCOP Admissions by Source School, CDE enrollment, IRS Form 990, NCES F-33. Test Prep Gurus Intelligence by Test Prep Gurus · Methodology
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