Summary:
ZIP code 93402 has three schools in the San Luis Coastal Unified district: two K–5 elementary schools and one grades 6–8 middle school. In 2025–2026, the listed schools’ all-grades results were above state results in ELA, math, and science, though the grade spans differ and the figures are not perfectly like-for-like. The clearest overall standout is Monarch Grove Elementary, which led all three subjects.
Monarch Grove scored 73% in ELA, 71% in math, and 60% in science—18 points higher in ELA and 26 points higher in math than Baywood Elementary, which had the lowest results in those subjects at 55% and 46%. Baywood’s 58% in science was above the state result, as was its ELA and math. Los Osos Middle had the lowest science result, 52%, but was still 16 points above the state; its ELA was 67% and math 49%. SchoolDigger ranked Monarch at the 90th percentile, Los Osos at the 83rd, and Baywood at the 69th.
Results changed unevenly between 2024–2025 and 2025–2026: the simple average across the three schools rose 10 points in science, 1 point in ELA, and less than 1 point in math. Baywood’s science result climbed 19 points, while Los Osos’s math result fell 4 points; Monarch improved in ELA by 4 points and was nearly unchanged in math. Context measures also differ: 2024–2025 free/reduced lunch eligible figures were 49% at Baywood, 41% at Monarch, and 51% at Los Osos. The elementary schools had similar student-teacher ratios, 22.8 at Baywood and 23.1 at Monarch. In 2025–2026, chronic absenteeism was lowest at Baywood (6%) and highest at Los Osos (22%); these measures are observations, not explanations for test results.
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