Summary:
ZIP code 90221 has six elementary schools: five serve kindergarten through grade 8, and Foster Elementary serves kindergarten through grade 5. Across the six schools, average proficiency was 54% in ELA and 52% in math, compared with state results of 49% and 38%; the science average was 34%, just below the state’s 36%. The standout finding is that Foster led all six schools in every tested subject.
Foster Elementary scored 76% in ELA, 77% in math and 73% in science, topping the next-highest school by 15, 25 and 39 percentage points, respectively. Its advantage also showed in grade 5, where it led the other schools by 22 points in ELA, 26 in math and 40 in science. Among the five K–8 schools, Clinton William Jefferson led in ELA (61%) and math (52%), while Kelly Elementary led in science (34%). At the lower end, Roosevelt Elementary had the lowest ELA (42%) and math (40%), while Emerson Elementary had the lowest science result (19%).
Average scores improved from 2024–25 to 2025–26 by 5 points in ELA, 7 in math and 9 in science; every school improved in math, while Mayo Elementary slipped in ELA and science. SchoolDigger ranked Foster 390th of 5,804 statewide, at the 93rd percentile with five stars; its percentile rose from the 60th over three ranking years. SchoolDigger percentiles also rose for Emerson, from the 21st to the 53rd, and Clinton, from the 61st to the 65th. All six schools reported free/reduced lunch eligible (FRL) for 2024–25, with rates from 85% at Foster to 92% at Roosevelt; student-teacher ratios ranged from 23.8 at Emerson to 26.8 at Roosevelt. These context measures do not explain the score differences. Foster’s K–5 grade span differs from the other schools’ K–8 span, though the grade-5 results show its lead in a grade all six serve.
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