This was 37.7 percent lower than the state average of 46.3 percent. In 2020 the total municipality population reached 819.
75.5 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Altona for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 149 | 24.5 |
| Regular high school diploma | 141 | 23.2 |
| GED or alternative credential | 167 | 27.5 |
| Some college, less than 1 year | 3 | 0.5 |
| Some college, 1 or more years, no degree | 95 | 15.7 |
| Associate's degree | 18 | 3 |
| Bachelor's degree | 34 | 5.6 |
| Master's degree | 0 | 0 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 0 | 0 |
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