Enrollment & Outcomes Scorecard
Ontario High School
Public · Ontario · San Bernardino County · 1,949 students · Class of 2025
UC Reach Score · Class of 2025
10
Below the CA median
below the state median
Higher than 16% of California high schools
-3.9 pp vs. peer median (14)
· Ranked #10 of 11 similar schools
5-year UC Reach Score
2021 · 17
2025 · 10
-10%
Senior-class enrollment (2018–2026)
-10.0 pp
vs. San Bernardino County baseline (+0%)
~1806
5-yr projected enrollment (143 fewer than today)
- ▸On UC Reach Score, Ontario High School sits near the bottom of its similar-school group (ranked #10 of 11): 10 vs. a peer median of 14.
- ▸Ontario High School's UC Reach Score has stepped down from a peak of 17 in 2021 to 10 in 2025 — a 7-point decline worth tracking.
- ▸Senior-class enrollment is down 10% (568→511 from 2018 to 2026), trailing the peer-group median of -0%.
- ▸At its recent rate (-2.5%/yr), enrollment projects to ~1806 by 2029 — about 143 fewer students than today.
Most similar nearby schools
| School | Type | UC Reach Score | Enroll. |
|---|---|---|---|
| Chino High School | Public | 15 | +1% |
| Colony High School | Public | 12 | +7% |
| Claremont High School | Public | 31 | -17% |
| Bonita High School | Public | 27 | +0% |
| Montclair High School | Public | 12 | -1% |
| Ruben S Ayala High School | Public | 45 | -6% |
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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