This was 23.7 percent lower than the state average of 41.1 percent. In 2020 the total municipality population reached 492.
92.9 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Salem for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 24 | 7.1 |
| Regular high school diploma | 127 | 37.5 |
| GED or alternative credential | 28 | 8.3 |
| Some college, less than 1 year | 39 | 11.5 |
| Some college, 1 or more years, no degree | 62 | 18.3 |
| Associate's degree | 34 | 10 |
| Bachelor's degree | 22 | 6.5 |
| Master's degree | 1 | 0.3 |
| Professional school degree | 2 | 0.6 |
| Doctorate degree | 0 | 0 |
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