Summary:
Ellington School District is served by a single high school, Ellington High School, which enrolls 701 students across grades 9–12 with a favorable 10.2-to-1 student-teacher ratio and roughly 22% of students eligible for free or reduced-price lunch. As the only high school in the district, the school's results essentially match district-level outcomes. Ellington High School is a solidly above-average Connecticut high school, earning 4 stars in state rankings for three consecutive years, while the district as a whole currently ranks 55th out of 153 districts statewide.
The school's standout strengths are graduation and attendance. Its 95.0% graduation rate exceeds both the district (94.0%) and state (91.2%), while chronic absenteeism of 11.9% is lower than the district's 12.3% and well below the state's 16.4%. Academically, Ellington High School beat state proficiency averages in every subject in both reported years. In 2025–2026, proficiency rates were 63.9% in ELA, 42.6% in math, and 57.4% in science, compared with statewide averages of 55.3%, 31.3%, and 50.5%. Math is the school's relative weakness, with a 21.3-point ELA–math gap, though it still outperforms the state by 11.3 points in math.
The main concern is the sharp decline from 2024–2025 to 2025–2026, when proficiency fell 14.0 points in ELA, 8.0 points in math, and 5.3 points in science. The state ranking slipped from 26th (82nd percentile) to 42nd (68th percentile) despite the 4-star rating holding steady. Different student cohorts can explain part of the drop, but these trends are worth monitoring. For parents, Ellington High School offers strong graduation outcomes, good attendance, a low student-teacher ratio, and above-state academics, with math performance being the area to follow most closely in the coming years.
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