Summary:
ZIP code 95330 has four K–8 schools serving 3,776 students, with enrollments from 797 to 1,025. In 2025–26, average proficiency was 55% in English language arts (ELA), 46% in math and 40% in science—above California’s averages of 49%, 38% and 36%. The most important finding is that these area averages hide a wide divide: the highest-to-lowest school gaps were 48 percentage points in ELA, 56 in math and 51 in science.
EPIC Academy led in all three subjects, with 74% proficiency in ELA, 68% in math and 63% in science—25, 29 and 27 points above the state, respectively. At the other end, Lathrop Elementary had 26% in ELA, 12% in math and 12% in science, below state averages by 23, 27 and 24 points. NextGeneration STEAM Academy and River Islands Technology Academy II were a close middle pair, separated by less than 1 point in each subject.
Recent trends differ by school: from 2024–25 to 2025–26, NextGeneration improved by 4 points in ELA, 3 in math and 10 in science, while EPIC declined by 6, 6 and 5 points. River Islands fell in ELA and math but rose 9 points in science; Lathrop’s ELA result was unchanged, while its math and science results fell. SchoolDigger ranks EPIC highest locally (87th percentile, 4 stars) and Lathrop lowest (9th percentile, 0 stars); NextGeneration and River Islands are at the 68th and 67th percentiles, both with 3 stars. As context, 2024–25 free/reduced lunch eligible shares ranged from 24% at EPIC to 72% at Lathrop, and 2025–26 chronic absenteeism ranged from 9% at EPIC to 21% at Lathrop; these measures do not explain test results. Student–teacher ratios were similar, ranging from 23.6 to 25.7.
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