| Index | Lake Madison | South Dakota | National |
| Average Test Scores | n/a | 48% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 340 | 79,221 |
| Total private schools | n/a | 76 | 24,874 |
| Total post-secondary schools | n/a | 25 | 7,963 |
| Index | Lake Madison | South Dakota | National |
| Completed 8th grade | 95.2% | 89.1% | 84.3% |
| Completed high school | 95.2% | 86.8% | 83.0% |
| Completed some college | 67.8% | 60.4% | 59.4% |
| Completed associate degree | 48.8% | 38.5% | 38.5% |
| Completed bachelors | 41.8% | 27.5% | 30.3% |
| Completed masters | 15.9% | 8.1% | 11.5% |
| Completed professional degree | 3.4% | 2.5% | 3.3% |
| Completed doctorate | 1.4% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Lake Madison. Using the proficiency score averages, the average test scores for Lake Madison, SD schools is n/a. The average student to teacher ratio is n/a. In Lake Madison, SD, an average of 95.2% of students have completed 8th grade and an average of 95.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Winfred, SD | 68 | 60% | 25.0% |
| Chester, SD | 285 | 60% | 24.5% |
| Madison, SD | 7,249 | 52% | 8.9% |
| Colman, SD | 683 | 44% | 8.3% |
| Ramona, SD | 413 | 42% | 13.2% |
| Lake Madison, SD | 811 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Wessington Springs, SD | 811 | 41% | 14.3% |
| Lecompte, LA | 811 | 56% | 16.7% |
| Jasper, AR | 811 | 42% | 12.5% |
| Peña Blanca, NM | 812 | 16% | 66.7% |
| Jonesburg, MO | 812 | 37% | 22.9% |
| Lake Madison, SD | 811 | n/a |
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