Summary
Thomas R Plympton Elementary School is a K–5 school serving 357 students in Waltham, Massachusetts, part of Waltham Public Schools, a district ranked 231st of 351 in Massachusetts. The school's own 2025–26 rank is 557th of 899 elementary schools statewide (38th percentile, 2 stars), placing it third among seven Waltham elementary schools. Its position has been fairly stable over the past decade, ranging between the 26th and 41st percentile, with a low point in 2023–24 (678th of 916, 26th percentile, 1 star) followed by two years of recovery.
Test scores show a clear split: math is a relative strength, while English language arts and science lag. In 2025–26, 43.29% of students were proficient in math — above both district (40.26%) and state (41.11%) averages — with 4th grade math at 56.36%, a genuine bright spot. ELA, however, was 29.09%, roughly nine points below the district and eleven below the state, and 5th grade ELA was just 22.45%. Science came in at 29.17%, below district and state. Compared with nearby Waltham schools, Douglas MacArthur Elementary School posts nearly identical math and science results but much stronger ELA (51.84%), while James Fitzgerald Elementary School outperforms Thomas R Plympton Elementary School in all three subjects.
Results also vary widely across student groups. Special education students ranked in the 54th percentile and male students in the 51st, while English learners ranked 40th and students from low-income backgrounds 25th; several of these groups have shown improvement in recent years. Per-student spending was $23,136 in 2020–21, mid-to-high among nearby schools, and the 2024–25 student–teacher ratio was 10.1, suggesting resources are not the obvious limit. For families comparing options, nearby Newton schools such as C C Burr (ELA 65.87%, math 75%, science 83.33%) and Cunniff in Watertown (ELA 42.45%, math 51.80%, science 60.42%) score higher in all three subjects.
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