This was 10.6 percent lower than the state average of 41.8 percent. In 2020 the total municipality population reached 266.
91.2 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Oakdale for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 18 | 8.8 |
| Regular high school diploma | 61 | 29.8 |
| GED or alternative credential | 1 | 0.5 |
| Some college, less than 1 year | 11 | 5.4 |
| Some college, 1 or more years, no degree | 50 | 24.4 |
| Associate's degree | 11 | 5.4 |
| Bachelor's degree | 48 | 23.4 |
| Master's degree | 5 | 2.4 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 0 | 0 |
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