Summary:
Zip code 92373 has 13 schools: six elementary schools, one middle school, two high schools, and four alternative schools. Ten schools have 2025–2026 results, while three have 2024–2025 results. For the latest year, the schools’ unweighted averages were 57% in ELA, 44% in math, and 38% in science, compared with state rates of 49%, 38%, and 36%. The most important finding is that these positive area averages conceal sharp differences between individual schools, especially in elementary grades.
Kimberly Elementary and Mariposa Elementary stand out among elementary schools: Kimberly leads grade 3 ELA at 77% and grade 5 math at 61%, while Mariposa leads grade 4 ELA at 73% and grade 5 science at 51%. At the other end, Mission Elementary has grade 5 results of 41% in ELA, 22% in math, and 19% in science—8, 15, and 16 points below state rates, respectively. In older grades, Sage Oak Charter School - South leads grade 11 ELA at 80%, but strengths vary by subject and grade; for example, Redlands eAcademy has 65% grade 8 ELA proficiency but 7% in grade 11 math.
Results are moving in different directions by subject: among the same 10 schools, average proficiency rose 2 points in ELA and 2 in math from 2024–2025 to 2025–2026, but fell 2 points in science, while the state science rate rose 3 points. Kimberly improved in all three subjects, while Redlands eAcademy’s science result fell 15 points. SchoolDigger’s reported percentile ranking for Kimberly rose from 82 to 86 between 2023–2024 and 2025–2026. For context, 2024–2025 free/reduced lunch eligible figures were 37% at Kimberly and 34% at Mariposa, compared with 68% at Mission; these are observations, not explanations of results. Grade-matched comparisons are most useful because schools serve different grades.
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