| Index | Dexter | Michigan | National |
| Average Test Scores | 68% | 42% | 48% |
| Student/Teacher ratio | 19:1 | 22:1 | 16:1 |
| Total public schools | 6 | 3,421 | 79,221 |
| Total private schools | n/a | 835 | 24,874 |
| Total post-secondary schools | n/a | 196 | 7,963 |
| Index | Dexter | Michigan | National |
| Completed 8th grade | 94.5% | 86.9% | 84.3% |
| Completed high school | 93.4% | 85.9% | 83.0% |
| Completed some college | 79.0% | 60.3% | 59.4% |
| Completed associate degree | 69.5% | 36.5% | 38.5% |
| Completed bachelors | 64.5% | 27.4% | 30.3% |
| Completed masters | 29.1% | 10.7% | 11.5% |
| Completed professional degree | 7.0% | 2.8% | 3.3% |
| Completed doctorate | 5.1% | 1.1% | 1.3% |
There are a total of 6 public schools, n/a private schools and n/a post-secondary schools in Dexter. Using the proficiency score averages, the average test scores for Dexter, MI schools is 68%. The average student to teacher ratio is 19:1. In Dexter, MI, an average of 94.5% of students have completed 8th grade and an average of 93.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Saline, MI | 9,296 | 69% | 42.9% |
| Chelsea, MI | 5,378 | 65% | 36.1% |
| Ann Arbor, MI | 121,093 | 62% | 28.5% |
| South Lyon, MI | 11,818 | 60% | 24.6% |
| Brighton, MI | 7,649 | 58% | 21.2% |
| Dexter, MI | 4,691 | 68% | 42.4% |
| City | Population | Avg. Test Scores | National Avg. |
| Middletown, MD | 4,694 | 69% | 44.4% |
| Flora, IL | 4,686 | 28% | 41.7% |
| Rio Bravo, TX | 4,686 | 46% | 5.2% |
| Baldwin City, KS | 4,684 | 38% | 21.5% |
| Headland, AL | 4,684 | 44% | 8.3% |
| Dexter, MI | 4,691 | 68% | 42.4% |
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