This was 25.2 percent lower than the state average of 43.7 percent. In 2020 the total municipality population reached 713.
89.7 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Hanover for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 57 | 10.3 |
| Regular high school diploma | 201 | 36.2 |
| GED or alternative credential | 33 | 5.9 |
| Some college, less than 1 year | 29 | 5.2 |
| Some college, 1 or more years, no degree | 133 | 23.9 |
| Associate's degree | 50 | 9 |
| Bachelor's degree | 44 | 7.9 |
| Master's degree | 9 | 1.6 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 0 | 0 |
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