| Index | Harrietta | Michigan | National |
| Average Test Scores | n/a | 42% | 48% |
| Student/Teacher ratio | n/a | 22:1 | 16:1 |
| Total public schools | n/a | 3,421 | 79,221 |
| Total private schools | n/a | 835 | 24,874 |
| Total post-secondary schools | n/a | 196 | 7,963 |
| Index | Harrietta | Michigan | National |
| Completed 8th grade | 67.3% | 86.9% | 84.3% |
| Completed high school | 67.3% | 85.9% | 83.0% |
| Completed some college | 38.9% | 60.3% | 59.4% |
| Completed associate degree | 21.2% | 36.5% | 38.5% |
| Completed bachelors | 10.6% | 27.4% | 30.3% |
| Completed masters | 0.0% | 10.7% | 11.5% |
| Completed professional degree | 0.0% | 2.8% | 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 Harrietta. Using the proficiency score averages, the average test scores for Harrietta, MI schools is n/a. The average student to teacher ratio is n/a. In Harrietta, MI, an average of 67.3% of students have completed 8th grade and an average of 67.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Boon, MI | 93 | 47% | 2.1% |
| Cadillac, MI | 10,462 | 47% | 2.3% |
| Manton, MI | 1,228 | 45% | 6.3% |
| Buckley, MI | 838 | 40% | 17.7% |
| Thompsonville, MI | 440 | 40% | 17.7% |
| Harrietta, MI | 224 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Adrian, OR | 224 | 51% | 6.3% |
| Dutton, MT | 224 | 48% | 1.0% |
| Hysham, MT | 224 | 50% | 4.2% |
| Gainesville, NY | 224 | 61% | 26.0% |
| Rudyard, MT | 224 | 47% | 2.8% |
| Harrietta, MI | 224 | n/a |
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