| Index | Miller City | Ohio | National |
| Average Test Scores | 87% | 61% | 48% |
| Student/Teacher ratio | n/a | 17:1 | 16:1 |
| Total public schools | n/a | 3,650 | 79,221 |
| Total private schools | n/a | 1,000 | 24,874 |
| Total post-secondary schools | n/a | 393 | 7,963 |
| Index | Miller City | Ohio | National |
| Completed 8th grade | 91.2% | 86.9% | 84.3% |
| Completed high school | 89.2% | 85.6% | 83.0% |
| Completed some college | 35.3% | 55.7% | 59.4% |
| Completed associate degree | 22.5% | 35.1% | 38.5% |
| Completed bachelors | 5.9% | 26.7% | 30.3% |
| Completed masters | 1.0% | 10.0% | 11.5% |
| Completed professional degree | 0.0% | 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 Miller City. Using the proficiency score averages, the average test scores for Miller City, OH schools is 87%. The average student to teacher ratio is n/a. In Miller City, OH, an average of 91.2% of students have completed 8th grade and an average of 89.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Ottoville, OH | 919 | 90% | 88.0% |
| Kalida, OH | 1,679 | 88% | 83.9% |
| Bluffton, OH | 4,024 | 85% | 77.4% |
| Continental, OH | 1,408 | 81% | 68.2% |
| Fort Jennings, OH | 382 | 80% | 65.6% |
| Miller City, OH | 142 | 87% | 80.9% |
| City | Population | Avg. Test Scores | National Avg. |
| Golovin, AK | 142 | 20% | 58.3% |
| Medora, ND | 142 | 70% | 45.8% |
| Kell, IL | 142 | 16% | 66.7% |
| Dola, OH | 141 | 63% | 31.8% |
| Reydon, OK | 141 | 55% | 14.6% |
| Miller City, OH | 142 | 87% | 80.9% |
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