Best High Schools in Zip Code 45830

ZIP code 45830 has one high school, Columbus Grove High School, which serves grades 9–12 in Columbus Grove, Ohio as part of Columbus Grove Local. It enrolls 247 students. Recent statewide rank history places it in Ohio’s top decile: 79 of 795 schools (90th percentile, 5 stars) in 2025–26, 58 of 855 (93rd percentile, 5 stars) in 2024–25, and 89 of 864 (90th percentile, 4 stars) in 2023–24. The district listing is 114 of 773, 85th percentile, 4 stars, so the high school’s recent rank history is stronger than the district listing.

In Ohio State Tests End-of-Course results, the school was above the state in all six tested subjects in both 2024–25 and 2025–26. Its unweighted average was 83.9% proficient in 2025–26 versus 63.2% statewide, and 85.6% in 2024–25 versus 62.0% statewide. Math is especially strong: Algebra I was 94.3% in 2025–26 versus 61.6% statewide, and Geometry was 68.8% versus 43.3%; in 2024–25, Algebra I was 93.0% versus 59.4%, and Geometry 68.3% versus 42.8%. English II was stable and above state, at 77.3% and 79.7% while the state was 60.4% and 62.7%. Science and social studies were more variable: Biology fell from 92.3% to 76.7%, and American History from 95.4% to 89.8%, though both stayed above the state. With 247 students, single-year swings can reflect small cohort sizes.

Outcome indicators are strong: the graduation rate is 98.5%, and chronic absenteeism is 3.2% at the school and 3.4% in the district for 2025–26. The reported free/reduced lunch rate is 89.88% for 2024–25, while per-student spending is $9,848 for 2018–19 and the student-teacher ratio is 21.2:1 for 2024–25. District and school test scores are nearly identical in most subjects; Algebra I is the exception, with the school at 94.3 and the district at 95.1 in 2025–26, and 93.0 versus 94.3 in 2024–25, possibly reflecting test-takers outside the high school. Overall, this is a small, top-decile school with especially strong math, consistent English II results, high graduation, low chronic absenteeism, and above-state scores across all tested subjects in the two reported years.