| Index | Merrimac | Wisconsin | National |
| Average Test Scores | 45% | 41% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 1,869 | 79,221 |
| Total private schools | n/a | 872 | 24,874 |
| Total post-secondary schools | n/a | 114 | 7,963 |
| Index | Merrimac | Wisconsin | National |
| Completed 8th grade | 89.5% | 89.0% | 84.3% |
| Completed high school | 89.0% | 87.8% | 83.0% |
| Completed some college | 53.8% | 59.7% | 59.4% |
| Completed associate degree | 31.2% | 38.7% | 38.5% |
| Completed bachelors | 23.1% | 28.4% | 30.3% |
| Completed masters | 9.3% | 9.6% | 11.5% |
| Completed professional degree | 2.1% | 2.7% | 3.3% |
| Completed doctorate | 1.2% | 1.1% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Merrimac. Using the proficiency score averages, the average test scores for Merrimac, WI schools is 45%. The average student to teacher ratio is n/a. In Merrimac, WI, an average of 89.5% of students have completed 8th grade and an average of 89.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Waunakee, WI | 13,903 | 69% | 42.7% |
| Windsor, WI | 7,340 | 54% | 12.5% |
| North Freedom, WI | 648 | 52% | 8.3% |
| Poynette, WI | 2,507 | 48% | = 100 |
| Mazomanie, WI | 1,709 | 47% | 1.7% |
| Merrimac, WI | 672 | 45% | 6.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Garibaldi, OR | 672 | 37% | 22.9% |
| Grand Isle, LA | 672 | 77% | 60.4% |
| New Home, TX | 672 | 75% | 56.3% |
| Grafton, IL | 672 | 65% | 35.4% |
| Campbell, NY | 672 | 57% | 18.8% |
| Merrimac, WI | 672 | 45% | 6.3% |
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