This was 15.9 percent lower than the state average of 46.3 percent. In 2020 the total municipality population reached 605.
82.7 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Barker for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 66 | 17.3 |
| Regular high school diploma | 78 | 20.5 |
| GED or alternative credential | 16 | 4.2 |
| Some college, less than 1 year | 46 | 12.1 |
| Some college, 1 or more years, no degree | 59 | 15.5 |
| Associate's degree | 48 | 12.6 |
| Bachelor's degree | 45 | 11.8 |
| Master's degree | 23 | 6 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 0 | 0 |
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