Summary:
Ansonia High School is the only public high school serving the Ansonia Local district in Ansonia, Ohio, enrolling 217 students in grades 9–12 — so every comparison here is between this school and the state rather than between schools in the area. The district is rated 4 stars and ranks 107th of 773 Ohio districts, in the 86th percentile with 4 stars. The high school is also a 4-star school and ranks 226th of 795 high schools in 2025–2026, in the 72nd percentile, a somewhat lower relative standing than the district overall.
Academically, the school performs above the state average. Across six Ohio End-of-Course subjects in 2025–2026, average proficiency was about 75.6%, compared with about 63.2% statewide, and the school beat the state in five of six subjects. Geometry was the standout: 75% proficient versus 43.3% statewide, a 31.7 percentage-point advantage, up from 50% the year before. American Government posted the highest single score at 88.4%, and social studies was consistently strong in both reported years. Biology is the main academic watch point: proficiency fell from 87.5% to 63.5% year over year, moving from 22.1 points above the state to 3.5 points below. Algebra I also dropped, from 86.4% to 71.7%, though it remained 10.1 points above the state.
The school reported a 100% graduation rate in 2025–2026, matching the district. Chronic absenteeism, however, is 12.6% at the school versus 7.9% district-wide — a gap worth watching. Class sizes look favorable, with a student-teacher ratio of 9.1 in 2024–2025. The school's statewide percentile has softened over three years, from 79 to 77 to 72, while it has stayed a 4-star school. Note that free/reduced-price lunch data is not reported, and the only spending figure available, $13,577 per student, dates to 2018–2019.
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