Enrollment & Outcomes Scorecard
Justin-Siena High School
Private · Catholic · Napa · Napa County · 679 students · Class of 2025
UC Reach Score · Class of 2025
38
Above average
top 25% in California
Higher than 82% of California high schools
+4.5 pp above peer median (34)
· Ranked #4 of 11 similar schools
5-year UC Reach Score
2020 · 43
2025 · 38
+30%
Senior-class enrollment (2020–2025)
+31.3 pp
vs. Napa County baseline (-1%)
~778
5-yr projected enrollment (+4.6%/yr)
- ▸On UC Reach Score, Justin-Siena High School sits in the middle of its similar-school group (ranked #4 of 11): 38 vs. a peer median of 34.
- ▸Justin-Siena High School's UC Reach Score has declined meaningfully from a peak of 51 in 2021 to 38 in 2025 — a 13-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 30% (123→160 from 2020 to 2025), outpacing the peer-group median of +5%.
- ▸Enrollment has been growing (+4.6%/yr); projects to ~778 by 2028.
Most similar nearby schools
| School | Type | UC Reach Score | Enroll. |
|---|---|---|---|
| Vacaville Christian High Schl | Private · Other religious | 18 | +17% |
| Marin Catholic High School | Private · Catholic | 30 | +19% |
| Cardinal Newman High School | Private · Catholic | 23 | -26% |
| Carondelet High School | Private · Catholic | 55 | +4% |
| Saint Francis Catholic High School | Private · Catholic | 54 | -13% |
| Moreau Catholic High School | Private · Catholic | 44 | -18% |
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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