| Index | Harmony | New Jersey | National |
| Average Test Scores | n/a | 52% | 48% |
| Student/Teacher ratio | n/a | 13:1 | 16:1 |
| Total public schools | n/a | 1,604 | 79,221 |
| Total private schools | n/a | 823 | 24,874 |
| Total post-secondary schools | n/a | 157 | 7,963 |
| Index | Harmony | New Jersey | National |
| Completed 8th grade | 81.1% | 87.5% | 84.3% |
| Completed high school | 81.1% | 86.3% | 83.0% |
| Completed some college | 31.3% | 60.7% | 59.4% |
| Completed associate degree | 18.1% | 43.9% | 38.5% |
| Completed bachelors | 13.9% | 37.5% | 30.3% |
| Completed masters | 3.9% | 14.4% | 11.5% |
| Completed professional degree | 0.0% | 4.0% | 3.3% |
| Completed doctorate | 0.0% | 1.5% | 1.3% |
There are a total of n/a 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, NJ schools is n/a. The average student to teacher ratio is n/a. In Harmony, NJ, an average of 81.1% of students have completed 8th grade and an average of 81.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Annandale, NJ | 1,794 | 79% | 63.5% |
| Nazareth, PA | 5,705 | 72% | 50.0% |
| Hellertown, PA | 5,835 | 70% | 46.5% |
| Asbury, NJ | 207 | 70% | 44.8% |
| Clinton, NJ | 2,699 | 67% | 39.1% |
| Harmony, NJ | 410 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Newfolden, MN | 410 | 53% | 10.9% |
| Carlos, MN | 410 | 62% | 29.2% |
| Pleasanton, NE | 410 | 45% | 6.8% |
| Caroga Lake, NY | 410 | 37% | 22.9% |
| Homer, NE | 410 | 51% | 5.7% |
| Harmony, NJ | 410 | n/a |
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