| Index | Ionia | Missouri | National |
| Average Test Scores | n/a | 44% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 1,899 | 79,221 |
| Total private schools | n/a | 531 | 24,874 |
| Total post-secondary schools | n/a | 213 | 7,963 |
| Index | Ionia | Missouri | National |
| Completed 8th grade | 69.9% | 86.0% | 84.3% |
| Completed high school | 67.1% | 84.2% | 83.0% |
| Completed some college | 30.1% | 57.7% | 59.4% |
| Completed associate degree | 4.1% | 35.2% | 38.5% |
| Completed bachelors | 2.7% | 27.6% | 30.3% |
| Completed masters | 2.7% | 10.4% | 11.5% |
| Completed professional degree | 0.0% | 2.8% | 3.3% |
| Completed doctorate | 0.0% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Ionia. Using the proficiency score averages, the average test scores for Ionia, MO schools is n/a. The average student to teacher ratio is n/a. In Ionia, MO, an average of 69.9% of students have completed 8th grade and an average of 67.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Cole Camp, MO | 1,379 | 60% | 25.3% |
| Sedalia, MO | 22,119 | 52% | 7.4% |
| Green Ridge, MO | 487 | 43% | 9.9% |
| Smithton, MO | 521 | 42% | 12.5% |
| Lincoln, MO | 1,253 | 42% | 12.5% |
| Ionia, MO | 78 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Harrisburg, NE | 78 | 48% | 1.0% |
| Dunning, NE | 78 | 50% | 4.2% |
| Branson, CO | 78 | 30% | 38.0% |
| Clifton Hill, MO | 79 | 37% | 22.9% |
| Stonyford, CA | 79 | 50% | 4.2% |
| Ionia, MO | 78 | n/a |
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