Summary
Charlton Middle School is a public school in Charlton, MA, serving 631 students in grades 5–8 as part of the Dudley-Charlton Regional district. In 2025–2026 it ranked 294th of 478 Massachusetts middle schools, placing it in the 38th percentile with 2 stars, while the district ranked 257th of 351 (27th percentile, 1 star). Its 2024–2025 student-teacher ratio was 13.0, and its 2020–2021 per-student spending was $15,426 — both mid-range among nearby schools.
Academically, Charlton was below the state in every tested subject in 2025–2026: ELA 30.52% proficient vs. 40.03% statewide, Mathematics 28.87% vs. 41.11%, Science 38.03% vs. 40.98%, and Civics 31.06% vs. 39.77%. Science is the relative bright spot, ranking 4th among 11 nearby middle schools and outperforming same-district Dudley Middle School (32.82%), though it trails Sutton Middle School, Auburn Middle, and Tantasqua Regional Junior High. Mathematics is the clearest weakness (6th of 11 nearby schools), and ELA ranks 7th of 11.
The trend line is a concern: Charlton's state percentile fell from 64 in 2021–2022 to 38 in 2025–2026, its lowest in the available history, with ELA, Mathematics, and Science all slipping. Grade-level weak spots are specific — 7th-grade Mathematics (21.25%) and 6th-grade ELA (25.17%) — while 5th-grade Science (43.75%) is close to the state level. Effectiveness varies widely across student groups; Special Education students rank in the 17th percentile with 1 star. Regionally, Charlton sits lower-middle: below Sutton, Auburn, and Tantasqua, close to Dudley, Leicester Middle, Oxford Middle, and Sullivan Middle, and above Knox Trail Middle School, Webster Middle School, and Southbridge Middle School.
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