This was 25.8 percent lower than the state average of 38.5 percent. In 2020 the total municipality population reached 466.
92 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Parker for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 25 | 8 |
| Regular high school diploma | 138 | 43.9 |
| GED or alternative credential | 7 | 2.2 |
| Some college, less than 1 year | 27 | 8.6 |
| Some college, 1 or more years, no degree | 77 | 24.5 |
| Associate's degree | 10 | 3.2 |
| Bachelor's degree | 25 | 8 |
| Master's degree | 2 | 0.6 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 3 | 1 |
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