This was 15 percent lower than the state average of 33 percent. In 2020 the total municipality population reached 503.
80.9 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Polkville for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 68 | 19.1 |
| Regular high school diploma | 149 | 41.9 |
| GED or alternative credential | 27 | 7.6 |
| Some college, less than 1 year | 26 | 7.3 |
| Some college, 1 or more years, no degree | 22 | 6.2 |
| Associate's degree | 35 | 9.8 |
| Bachelor's degree | 19 | 5.3 |
| Master's degree | 4 | 1.1 |
| Professional school degree | 5 | 1.4 |
| Doctorate degree | 1 | 0.3 |
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