Summary:
Zip code 93667 has two high schools serving grades 9–12, Sierra High and Sierra Alternative High, both in Sierra Unified. Their enrollments differ considerably: 367 students at Sierra High and 10 at Sierra Alternative. The clearest current strength is Sierra High’s ELA result: 74% proficient in 2025–2026, compared with 49% statewide, even as its math and science scores were slightly below state results.
Sierra High stands out at the top in current ELA, leading the state by 25 percentage points; its math was 4 points below the state and science 1 point below. Its 2025–2026 graduation rate was 93%, 5 points above the state, while chronic absenteeism was 22%, 3 points above. Sierra Alternative High had a more mixed profile in its latest reported scores, from 2024–2025: ELA was 36%, below the state’s 49%, while math was 45%, above the state’s 37%. Its 2025–2026 graduation rate was 87%, and its reported chronic absenteeism rate was 100%. A direct 2025–2026 test-score comparison is unavailable because Sierra Alternative High’s scores are suppressed.
Recent test-score changes at Sierra High vary by subject: from 2024–2025 to 2025–2026, ELA fell 2 points, math fell 6, and science rose 9. Its state-relative ELA lead narrowed by 3 points, its math position shifted from 2 points above the state to 4 below, and its science shortfall narrowed by 5 points. SchoolDigger gave Sierra High four stars in each of the three listed years, while its percentile ranking eased from 76th to 72nd; Sierra Alternative’s listed percentile rankings rose from 0 in 2016–2017 to 61 in 2024–2025, with gaps between observations. In 2024–2025, the free/reduced lunch eligible share was 35% at Sierra High and 40% at Sierra Alternative. That year, student-teacher ratios were 16.9 and 5, respectively; these are differences in school context, not explanations for the results.
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