This was 16.6 percent lower than the state average of 36 percent. In 2020 the total municipality population reached 5,972.
87.9 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Portland for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 465 | 12.1 |
| Regular high school diploma | 1,503 | 39.2 |
| GED or alternative credential | 273 | 7.1 |
| Some college, less than 1 year | 230 | 6 |
| Some college, 1 or more years, no degree | 622 | 16.2 |
| Associate's degree | 351 | 9.1 |
| Bachelor's degree | 252 | 6.6 |
| Master's degree | 90 | 2.3 |
| Professional school degree | 41 | 1.1 |
| Doctorate degree | 12 | 0.3 |
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