Summary:
Zip code 92373 has six K–5 elementary schools in Redlands Unified, with enrollment ranging from 315 to 634. As a group, the schools scored above the state average in 2025–2026 in English language arts (ELA), math and science: about 57% versus 49% in ELA, 48% versus 38% in math, and 39% versus 36% in science. The group’s averages hide large differences from school to school, especially in science.
Kimberly Elementary leads in ELA and math, while Mariposa Elementary tops science. Kimberly and Mariposa are nearly tied in ELA at 71.5% and 71.2%, about 26 points above Mission Elementary, which scored 45%. In math, Kimberly’s 64% is 31 points above Kingsbury Elementary at 33%. Mariposa scored 51% in science, 31 points above Mission’s 19%; Mission also sits 17 points below the state in science. Smiley Elementary is another strong all-subject performer, scoring above the state in all three subjects.
Average scores improved in ELA and math from 2024–2025 to 2025–2026, rising about 5 and 4 points, respectively; science was nearly unchanged, while the state’s science score rose 3 points. Kimberly had the largest gains—14 points in ELA, 10 in math and 6 in science—but Mission’s science fell 9 points and McKinley Elementary’s fell 6. Fifth-grade math is a concern across the group: every school scored lower in fifth than fourth grade, with the average dropping 14 points. School context does not neatly track results: Smiley exceeds the state in all subjects despite the group’s highest student-teacher ratio (25.3) and a 57% free/reduced lunch eligible share in 2024–2025; the shares range from 34% at Mariposa to 68% at Mission. SchoolDigger’s statewide percentile rose 4 points for Kimberly and 5 for McKinley from 2023–2024 to 2025–2026, while Mariposa’s fell 2 points, another reminder that ranking trends and recent subject scores can differ.
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