Enrollment & Outcomes Scorecard
Fullerton Union High School
Public · Fullerton · Orange County · 1,921 students · Class of 2025
UC Reach · Class of 2025
21%
Higher than 56% of California high schools
+5.8 pp above peer median (15.1%)
· Ranked #5 of 11 similar schools
5-year UC Reach
2021 · 19.6%
2025 · 20.9%
-13%
Senior-class enrollment (2018–2026)
-5.5 pp
vs. Orange County baseline (-7%)
~1884
5-yr projected enrollment (37 fewer than today)
- ▸On UC Reach, Fullerton Union High School sits in the middle of its similar-school group (ranked #5 of 11): 21% vs. a peer median of 15%.
- ▸Its UC Reach has risen 6 points since 2018.
- ▸Across the top-6 UC campuses, Fullerton Union High School is admitting at roughly +15 percentage points above what its average applicant GPA (4.006) alone would predict (35% actual vs. 20% expected). That's a meaningful signal — it can reflect UC's track record with this school's graduates, students presenting strongly in UC's holistic review (essays, EC's, context), or institutional familiarity helping at the margin. The data can't distinguish which, but the pattern itself is real and worth understanding.
- ▸Senior-class enrollment is down 13% (517→452 from 2018 to 2026), tracking the peer-group median of -13%.
- ▸At its recent rate (-0.7%/yr), enrollment projects to ~1884 by 2029 — about 37 fewer students than today.
Most similar nearby schools
| School | Type | UC Reach | Enroll. |
|---|---|---|---|
| El Dorado High School | Public | 22.4% | +12% |
| LA Habra High School | Public | 9.6% | -9% |
| Sunny Hills High School | Public | 53.3% | +4% |
| Valencia High School | Public | 27.8% | -6% |
| Sonora High School | Public | 14.2% | -20% |
| Katella High School | Public | 11.3% | -20% |
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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