Best Public Schools in Zip Code 06255

Zip code 06255 covers North Grosvenordale in Thompson, Connecticut, and is served by three public schools—Mary R. Fisher Elementary School, Thompson Middle School, and Tourtellotte Memorial High School—all part of the Thompson School District, which ranks in the bottom quarter of Connecticut districts. The three schools share a single K–12 campus on Riverside Drive, with a combined enrollment of 805 students, and together they show a clear pattern: strong early grades, a troubling math slide in middle school, and attendance and achievement struggles at the high school level.

The clear standout is Mary R. Fisher Elementary School, a 3-star school in the top half of elementary schools statewide. Its math proficiency far exceeds state averages—62.3% of 3rd graders and 70.0% of 4th graders are proficient, versus about 52% statewide—and its chronic absenteeism rate is just 8.9%, the lowest in the zip code. In contrast, Thompson Middle School is a 2-star school that has slipped from the 45th to the 33rd percentile in one year, with math proficiency ranging from 25.0% to 30.4% across grades 5–8, roughly 12–19 points below state levels. Tourtellotte Memorial High School also earns 2 stars, with low SAT math proficiency (20.6% vs. 31.3% statewide) and chronic absenteeism of 19.3%—more than double the elementary school’s rate, despite having the lowest poverty rate of the three schools.

Several findings stand out for parents. Math proficiency collapses from 70% in 4th grade to 28.6% in 5th grade, suggesting a difficult transition. Chronic absenteeism rises sharply with grade level, from 8.9% to 11.4% to 19.3%. The high school spends the most per pupil ($20,904) and has the smallest class sizes, yet still underperforms, indicating challenges beyond resources. Year-to-year test scores swing widely—for example, 3rd grade math dropped from 84.6% to 62.3%, and 11th grade science fell from 47.8% to 27.3%—so single-year results should be viewed with caution. Overall, this district offers a solid elementary foundation, but families should watch how math achievement and attendance trends evolve in the middle and high school years.