| Index | Dedham | Iowa | National |
| Average Test Scores | n/a | 69% | 48% |
| Student/Teacher ratio | n/a | 13:1 | 16:1 |
| Total public schools | n/a | 1,101 | 79,221 |
| Total private schools | n/a | 208 | 24,874 |
| Total post-secondary schools | n/a | 96 | 7,963 |
| Index | Dedham | Iowa | National |
| Completed 8th grade | 96.6% | 89.2% | 84.3% |
| Completed high school | 93.2% | 87.7% | 83.0% |
| Completed some college | 41.9% | 59.8% | 59.4% |
| Completed associate degree | 25.0% | 38.4% | 38.5% |
| Completed bachelors | 8.8% | 27.2% | 30.3% |
| Completed masters | 0.0% | 8.7% | 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 Dedham. Using the proficiency score averages, the average test scores for Dedham, IA schools is n/a. The average student to teacher ratio is n/a. In Dedham, IA, an average of 96.6% of students have completed 8th grade and an average of 93.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Coon Rapids, IA | 1,284 | 77% | 60.4% |
| Manning, IA | 1,603 | 76% | 57.8% |
| Carroll, IA | 10,175 | 73% | 51.7% |
| Westside, IA | 258 | 69% | 42.7% |
| Audubon, IA | 2,125 | 68% | 42.2% |
| Dedham, IA | 258 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Leland, MI | 258 | 49% | 1.0% |
| Westside, IA | 258 | 69% | 42.7% |
| Nett Lake, MN | 258 | 50% | 4.2% |
| Maitland, MO | 258 | 35% | 27.1% |
| Chataignier, LA | 258 | 67% | 38.5% |
| Dedham, IA | 258 | n/a |
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