This was 15 percent lower than the state average of 43.2 percent. In 2020 the total municipality population reached 438.
81.9 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Bartley for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 50 | 18.1 |
| Regular high school diploma | 75 | 27.1 |
| GED or alternative credential | 14 | 5.1 |
| Some college, less than 1 year | 19 | 6.9 |
| Some college, 1 or more years, no degree | 41 | 14.8 |
| Associate's degree | 44 | 15.9 |
| Bachelor's degree | 19 | 6.9 |
| Master's degree | 8 | 2.9 |
| Professional school degree | 7 | 2.5 |
| Doctorate degree | 0 | 0 |
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