Summary:
Wilton, Connecticut, an affluent suburb in Fairfield County, is served by four highly regarded public schools in the Wilton School District, which educates roughly 3,730 students across grades PK-12: Wilton High School (9-12), Middlebrook School (6-8), Miller-Driscoll School (PK-2), and Cider Mill School (3-5). The district is ranked 11th out of 153 Connecticut districts (93rd percentile) and holds a 5-star rating.
Middlebrook School is the academic crown jewel, ranked #4 in Connecticut for 2025-26 after earning the #1 spot in 2023-24. Its 8th grade math proficiency rate of 89.4% is more than double the state average of 41.9%, with similarly dominant results in science (87.0% vs. 50.9%). Wilton High School excels in outcomes and attendance, posting a 98.3% graduation rate and just 2.2% chronic absenteeism, dramatically below the state's 16.4%. Cider Mill School is the relative weak spot, ranked #68 out of 491 (86th percentile), with a notable year-over-year decline in 5th grade ELA from 88.1% to 79.3%. Miller-Driscoll School has no test scores since it ends at grade 2 but maintains the district's lowest free or reduced-price lunch rate at 2.72%.
Test proficiency tends to rise with grade level across the district, with 3rd grade ELA at 68.7% climbing to 83.5% by 8th grade, and math rising from 74.4% to 89.4%. District-wide chronic absenteeism is just 3.9%, roughly one-quarter of the state rate. With about 5.6% of students qualifying for free or reduced-price lunch, spending per student between $20,400 and $21,100, and student-teacher ratios of 11.2 to 13.0, Wilton pairs low poverty with strong attendance and ample resources, yielding consistently top-tier results. The school to watch is Cider Mill, whose recent 5th grade dips are worth monitoring even within an otherwise exceptional district.
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