Summary:
Zip code 45331 has one public high school, Greenville Senior High School, serving grades 9–12 in the Greenville City district in Greenville, Ohio, with 776 students. It is a mixed-profile school: graduation outcomes are strong, but test scores and attendance show areas of concern.
The school reports a 97.3% graduation rate in 2025–2026, yet chronic absenteeism is 26.9%, higher than the district’s 20.8%. Its rank has slipped from the 55th percentile in 2023–2024 to the 51st in 2024–2025 and the 35th in 2025–2026, with stars dropping from 3 to 2; the district ranks at the 38th percentile with 2 stars. In 2025–2026 test proficiency, the school averaged 60.5%, close to the district’s 62.8% and the state’s 63.2%, but that average hides big differences by subject.
American History is the most consistent relative strength, at 73.6% versus the state’s 73.2%, though the margin narrowed from the prior year. Algebra I improved from 52.2% to 64.4% and is above the state’s 61.6%, while English II rose from 55.5% to 59.8% but remains below the state’s 62.7%. Geometry is the clearest weak spot: 30.3% proficiency, down from 35.1% and 13.0 points below the state’s 43.3%. American Government, American History, and Biology all fell sharply from 2024–2025. More than half of students are economically disadvantaged by the free/reduced-price lunch measure (51.16%), the student-teacher ratio is 14.2, and per-student spending is listed at $8,266 from 2018–2019. For parents, the key takeaways are strong graduation and Algebra I/History results, but serious attention is needed on Geometry, attendance, and recent declines in several subjects.
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