This was 24 percent lower than the state average of 38 percent. In 2020 the total municipality population reached 422.
86 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Madison for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 41 | 14 |
| Regular high school diploma | 113 | 38.6 |
| GED or alternative credential | 23 | 7.8 |
| Some college, less than 1 year | 37 | 12.6 |
| Some college, 1 or more years, no degree | 38 | 13 |
| Associate's degree | 18 | 6.1 |
| Bachelor's degree | 20 | 6.8 |
| Master's degree | 3 | 1 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 0 | 0 |
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