Summary:
Zip code 94945 has four schools spanning elementary through high school: two elementary schools, one middle school and one high school. In 2025–2026, the schools’ average results were slightly above California’s in ELA, math and science, but that broad picture hides substantial differences. Most important, San Ramon Elementary led in all three subjects, while the gap between the highest- and lowest-scoring schools reached 18 points in ELA, 23 in math and 27 in science.
San Ramon was the clearest academic standout, with 57% proficient in ELA, 54% in math and 53% in science, compared with state results of 49%, 38% and 36%. The lowest result depends on the subject: Union Hill Middle had the lowest ELA result at 39% and science at 26%, while Olive Elementary had the lowest math result at 31%. San Marin High was above the state in all-grades results, though its 11th-grade ELA result was below the state’s. Union Hill’s results vary by grade: its 7th-grade math was 56%, well above the state’s 38%, but its 8th-grade math was 25%, below the state’s 36%.
Results generally fell from 2024–2025 to 2025–2026: the equal-weighted average across the four schools dropped 9 points in ELA, 1 in math and 2 in science, and its advantage over the state narrowed in every subject. SchoolDigger rankings also declined for all four schools: San Marin moved from the 85th to the 76th percentile, San Ramon from the 85th to the 75th, Olive from the 70th to the 53rd, and Union Hill from the 75th to the 51st. San Marin offers a positive counterpoint, with a 97% graduation rate and 1% dropout rate in 2025–2026. The elementary schools have similar student-teacher ratios—22.1 at San Ramon and 21.3 at Olive—but different results; in 2024–2025, free/reduced lunch eligible students were 31% at San Ramon and 50% at Olive. These are observations, not explanations of school outcomes. Because the schools serve different grade spans, all-grades comparisons are less direct than same-grade comparisons.
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