| Index | Harmony | Minnesota | National |
| Average Test Scores | 50% | 52% | 48% |
| Student/Teacher ratio | 12:1 | 16:1 | 16:1 |
| Total public schools | 3 | 2,224 | 79,221 |
| Total private schools | n/a | 477 | 24,874 |
| Total post-secondary schools | n/a | 140 | 7,963 |
| Index | Harmony | Minnesota | National |
| Completed 8th grade | 87.9% | 90.5% | 84.3% |
| Completed high school | 86.1% | 89.5% | 83.0% |
| Completed some college | 58.2% | 66.9% | 59.4% |
| Completed associate degree | 28.0% | 45.2% | 38.5% |
| Completed bachelors | 21.0% | 34.2% | 30.3% |
| Completed masters | 7.6% | 11.5% | 11.5% |
| Completed professional degree | 2.1% | 3.5% | 3.3% |
| Completed doctorate | 1.5% | 1.4% | 1.3% |
There are a total of 3 public schools, n/a private schools and n/a post-secondary schools in Harmony. Using the proficiency score averages, the average test scores for Harmony, MN schools is 50%. The average student to teacher ratio is 12:1. In Harmony, MN, an average of 87.9% of students have completed 8th grade and an average of 86.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Cresco, IA | 3,751 | 71% | 47.4% |
| Preston, MN | 1,192 | 63% | 31.3% |
| Lanesboro, MN | 778 | 60% | 24.0% |
| Mabel, MN | 797 | 58% | 20.3% |
| Harmony, MN | 1,028 | 50% | 3.1% |
| City | Population | Avg. Test Scores | National Avg. |
| Garden Plain, KS | 1,028 | 44% | 8.3% |
| Bronte, TX | 1,028 | 50% | 3.1% |
| York Springs, PA | 1,028 | 61% | 27.8% |
| Cooleemee, NC | 1,028 | 39% | 19.8% |
| Stromsburg, NE | 1,028 | 63% | 31.3% |
| Harmony, MN | 1,028 | 50% | 3.1% |
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