| Index | Ossian | Iowa | National |
| Average Test Scores | 75% | 69% | 48% |
| Student/Teacher ratio | n/a | 13:1 | 16:1 |
| Total public schools | n/a | 1,101 | 79,221 |
| Total private schools | n/a | 208 | 24,874 |
| Total post-secondary schools | n/a | 96 | 7,963 |
| Index | Ossian | Iowa | National |
| Completed 8th grade | 92.2% | 89.2% | 84.3% |
| Completed high school | 89.0% | 87.7% | 83.0% |
| Completed some college | 51.5% | 59.8% | 59.4% |
| Completed associate degree | 31.8% | 38.4% | 38.5% |
| Completed bachelors | 17.0% | 27.2% | 30.3% |
| Completed masters | 5.6% | 8.7% | 11.5% |
| Completed professional degree | 1.8% | 2.7% | 3.3% |
| Completed doctorate | 0.0% | 1.1% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Ossian. Using the proficiency score averages, the average test scores for Ossian, IA schools is 75%. The average student to teacher ratio is n/a. In Ossian, IA, an average of 92.2% of students have completed 8th grade and an average of 89.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Decorah, IA | 7,615 | 81% | 68.5% |
| Calmar, IA | 989 | 80% | 66.7% |
| Elgin, IA | 638 | 78% | 62.0% |
| Waukon, IA | 3,663 | 76% | 58.0% |
| West Union, IA | 2,630 | 69% | 42.7% |
| Ossian, IA | 798 | 75% | 55.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Oilton, OK | 798 | 25% | 48.4% |
| Burr Oak, MI | 798 | 32% | 32.8% |
| Teec Nos Pos, AZ | 798 | 30% | 36.8% |
| Gallatin Gateway, MT | 798 | 56% | 17.1% |
| Moncure, NC | 798 | 42% | 12.5% |
| Ossian, IA | 798 | 75% | 55.2% |
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