This was 4.8 percent lower than the state average of 43.7 percent. In 2020 the total municipality population reached 3,539.
93.5 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Winnebago for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 156 | 6.5 |
| Regular high school diploma | 556 | 23.2 |
| GED or alternative credential | 86 | 3.6 |
| Some college, less than 1 year | 385 | 16.1 |
| Some college, 1 or more years, no degree | 280 | 11.7 |
| Associate's degree | 360 | 15 |
| Bachelor's degree | 362 | 15.1 |
| Master's degree | 187 | 7.8 |
| Professional school degree | 21 | 0.9 |
| Doctorate degree | 0 | 0 |
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