Summary
Sierra Middle is a public school in Stockton serving grades 7–8, with 591 students. Its latest results show a clear difference by subject: English language arts is above the state average, while math and science are below it. The most important takeaway is that ELA is the school’s clearest academic strength, particularly in 8th grade.
Compared with the state, Sierra had 51% proficiency in ELA in 2025–2026, versus 49% statewide; math was 35%, versus 38%, and science was 29%, versus 36%. It also outperformed Lincoln Unified in ELA and math, but was just below the district in science. Among seven schools with same-grade results, Sierra ranked second in ELA for both grades, second in 7th-grade math and third in 8th-grade math and science. Elkhorn was the standout local school, while Sierra was generally among the stronger performers.
Results have improved over time in math and science: math proficiency rose 7 percentage points from 2023–2024 to 2025–2026, and science rose 8 points over that span, though both remain below the state. SchoolDigger ranked Sierra at the 58th percentile statewide, with 3 stars, in 2025–2026; its ranking has edged up from the 56th percentile in 2023–2024. Chronic absenteeism has fallen over the longer term, from 35% in 2021–2022 to 22% in 2025–2026, but rose 4 points in the latest year and is above the state rate. In 2024–2025, 72% of students were free/reduced lunch eligible, and the student-teacher ratio was 21:1; both measures were near the middle among nearby schools. SchoolDigger’s effectiveness ranking was notably high for Hispanic students, at the 75th percentile, compared with 58th overall; for Special Education students it was at the 39th percentile, though that group’s ranking rose from the 9th percentile the prior year.
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