Summary:
ZIP code 93635 has 16 schools serving students from transitional kindergarten through grade 12, including elementary, middle, conventional high schools, and alternative and continuation programs. Among the 15 schools with 2025–26 test results, average school proficiency was 15 percentage points below the state in ELA, 17 points below in math, and 17 points below in science. Results vary substantially even among nearby schools, so the school a child attends matters more than a single ZIP-code-wide picture.
Pacheco High leads the conventional high schools: 60% of students were proficient in ELA, 24% in math, and 31% in science. Its ELA result was 11 points above the state figure, while its math and science results were 15 and 5 points below. At the elementary level, Westside Union Elementary leads in ELA (47%) and science (40%), while Grasslands Elementary leads in math (42%). At the other end, Henry Miller Elementary has the lowest elementary ELA and math results (23% and 14%), and Mercey Springs Elementary has the lowest elementary science result (4%). Among conventional high schools, San Luis High (Continuation) is lowest in all three subjects; in ELA, its 16% result is 44 points below Pacheco’s. At middle-school level, Los Banos Junior High leads Creekside Junior High by 13 points in ELA, 5 in math, and 6 in science. Crossroads serves grades 7–12, so its results are not directly comparable with conventional high schools.
Average school results improved from 2024–25 to 2025–26 by 1 point in ELA, 2 in math, and 4 in science, slightly more than the state’s gains; however, results did not rise everywhere. For example, Westside’s science result increased 14 points, while Creekside’s fell 5 points. SchoolDigger rankings also moved in different directions: Grasslands rose 10 percentile points from 2023–24 to 2025–26, while Charleston Elementary fell 13. As context, all schools report free/reduced lunch eligible figures for 2024–25: they range from 71% at Pacheco to 95% at San Luis. Absenteeism is another notable difference: San Luis reports 72% chronic absenteeism versus 18% statewide, while Pacheco reports 25%. These measures describe school context, not a simple explanation for test results.
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