Summary
John Marshall Elementary School serves 762 students in grades K–5 in Edison, New Jersey, within the Edison Township School District. In 2025–2026, its proficiency rates were above state averages in every tested grade and subject, but results varied by subject and grade. The most important concern is the sharp decline in ELA, particularly in fourth grade.
Math and science are John Marshall’s clearest strengths compared with nearby schools and the state. Its average math proficiency was 61%, versus 47% statewide and 53% for four nearby Edison K–5 peers; in science, its fifth-grade rate was 42%, compared with 27% statewide and 29% among those peers. ELA is less distinctive: the school averaged 55.1%, just above the nearby peers’ 54.7%, and below the district average of 63%. Fourth-grade ELA was especially weak at 49%, 10 points below the district, and only one of the four nearby peers scored lower. Overall, John Marshall’s averages were above the state in all three subjects, but below the district in ELA, math and science.
ELA proficiency fell 8 points from 2022–2023 to 2025–2026, from 63% to 55%; fourth grade dropped 17 points, while the state ELA average was nearly unchanged. Math remained about level at 61%, and fifth-grade science edged up to 42%. SchoolDigger rates John Marshall at the 67th statewide percentile with 3 stars, down 22 percentile points from its 2020–2021 peak. Its 2024–2025 student-teacher ratio was 11.5:1, below the nearby-peer average of 12.8:1; 37% of students were free/reduced lunch eligible that year. Chronic absenteeism was 17% in 2024–2025, above the district’s 12% and the state’s 14%. SchoolDigger’s statewide effectiveness ranking was notably high for English Language Learner Students, at the 88th percentile, and lower for Hispanic Students, at the 24th percentile, compared with 67 overall.
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