Summary:
Middle schools located in zip code 06255 consist of a single school, Thompson Middle School, serving grades 5–8 in North Grosvenordale, CT, as part of the Thompson School District. With 262 students and a favorable 10:1 student-teacher ratio, the school stands alone as the educational hub for the area, but its academic performance reveals significant challenges that parents should understand.
The most urgent concern is mathematics: in 2025-2026, proficiency rates fell 12.5 to 19.4 points below state averages in every tested grade. For example, only 25.0% of 6th graders were proficient in math versus 44.4% statewide, and 7th grade math proficiency was 30.4% compared to the state's 44.1%. English language arts (ELA) results are mixed and declining. While 8th graders outperformed the state in 2024-2025, by 2025-2026, 5th grade ELA dropped from 51.6% to 44.2% and 7th grade ELA fell to 39.1%, a 13.1-point gap below state averages. Across all comparable grades, every subject declined year over year, with 6th grade math dropping by 8.8 points and 5th grade ELA by 7.4 points.
There are some bright spots. Chronic absenteeism is just 11.4%, well below the district's 13.0% and the state's 16.4%. The school also ranks above its district (33rd percentile vs. 21st percentile), though both trail the statewide midpoint, and the school's state rank slipped from the 45th to 33rd percentile recently. Nearly half of students (46.18%) qualify for free/reduced lunch, indicating socioeconomic challenges that may influence scores. Despite small class sizes and good attendance, math gaps and declining ELA scores demand attention. For families, this school offers a tight-knit environment and strong attendance, but academics—especially math—remain significant areas for improvement.
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