Summary:
ZIP code 45312 covers Casstown, Ohio, and is served by the Miami East Local district, which enrolls about 1,330 students across three public schools: Miami East Elementary (K–5, 602 students), Miami East Junior High School (6–8, 327 students), and Miami East High School (9–12, 401 students). The district ranks #56 of 773 Ohio districts — the 93rd percentile — with 5 stars.
All three schools perform well above the state average, but they differ in emphasis. Miami East Junior High School is the standout: #46 of 1,046 middle schools, 96th percentile, 5 stars, 100% proficiency in Algebra I two years running, and 90.4% in 8th grade science. It also has the smallest classes in the ZIP (student-teacher ratio 15.1). Miami East High School ranks #71 of 795 high schools (91st percentile, 5 stars) and reports a 100% graduation rate, with 93.9% proficiency in American Government. Its main concern is chronic absenteeism at 9.0%, the highest of the three. Miami East Elementary is the largest school, ranks #211 of 1,560 (86th percentile, 4 stars), and is solidly above state, though relatively less dominant, with the highest student-teacher ratio at 18.0.
Across both years in the data, all 42 reported test results are above the Ohio average, and the latest-year combined proficiency is 84.5% versus the state's 61.1% — a gap of +23.4 points. Chronic absenteeism is low overall: 5.6% at the elementary, 5.8% at the junior high, 9.0% at the high school, and 6.6% for the district, meaning the high school rate is what lifts the district figure. Note that free/reduced lunch is not reported for the elementary school, and per-student spending figures date from 2018–2019, so they should be read with caution.
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