Summary
William Mendenhall Middle serves 876 students in grades 6–8 in Livermore’s Livermore Valley Joint Unified, within a comparison group of 11 nearby middle schools. Its 2025–26 results were above district and California averages in all three tested subjects, but the most important comparison for local families is that most nearby schools had higher proficiency.
Mendenhall’s strongest comparison is with its district and the state: in 2025–26, proficiency was 69% in ELA, 58% in math, and 61% in science—about 8, 6, and 14 points above district rates, and 19, 20, and 25 points above state rates. Against the 10 other nearby schools, however, its averages were 8 points lower in ELA and 11 points lower in math, while science was about the same. It ranked fourth-lowest in ELA, third-lowest in math, and fifth-lowest in science among the 11 schools. Attendance is a clear bright spot: chronic absenteeism was 4% in 2025–26, versus 12% districtwide and 18% statewide; only two nearby schools had lower rates.
Over time, math proficiency rose 3 points from 2022–23 to 2025–26, while ELA was essentially flat and science fell 1 point; the school’s lead over the state narrowed in all three subjects as statewide results improved. SchoolDigger ranked Mendenhall 301st of 2,703 schools, at the 89th percentile with 4 stars; its standing was steady over the past three years, but the other 10 nearby schools averaged the 92nd percentile. The student-teacher ratio was 24.1 in 2024–25, the third-highest in the comparison group. About 7% of students were free/reduced lunch eligible that year, the second-lowest rate among schools with comparable measures. One notable subgroup result is SchoolDigger’s ranking for Low Socio Economic Status Students: the school was at the 44th percentile in 2025–26, down from the 83rd percentile in 2023–24, compared with its overall 89th-percentile standing.
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