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Enrollment & Outcomes Scorecard

Los Altos High School

Public · Hacienda Heights · Los Angeles County · 1,586 students · Class of 2025

UC Reach Score · Class of 2025
12
Below the CA median below the state median
Higher than 27% of California high schools
-5.4 pp vs. peer median (17) · Ranked #10 of 11 similar schools
5-year UC Reach Score
2021 · 11 2025 · 12
-20%
Senior-class enrollment (2018–2026)
-11.8 pp
vs. Los Angeles County baseline (-8%)
~1520
5-yr projected enrollment (66 fewer than today)
  • On UC Reach Score, Los Altos High School sits near the bottom of its similar-school group (ranked #10 of 11): 12 vs. a peer median of 17.
  • Los Altos High School's UC Reach Score has declined meaningfully from a peak of 22 in 2019 to 12 in 2025 — a 10-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.
  • Across the top-6 UC campuses, Los Altos High School is admitting at roughly +7 percentage points above what its average applicant GPA (3.865) alone would predict (28% actual vs. 22% 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 20% (460→368 from 2018 to 2026), trailing the peer-group median of -14%.
  • At its recent rate (-1.4%/yr), enrollment projects to ~1520 by 2029 — about 66 fewer students than today.

Most similar nearby schools

SchoolType UC Reach ScoreEnroll.
Glen a Wilson High School Public 32 -3%
Whittier High School Public 17 -18%
Sierra Vista High School Public 23 -10%
Arroyo High School Public 22 -29%
Nogales High School Public 16 -13%
South Hills High School Public 19 -1%

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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