This was 5.5 percent lower than the state average of 41 percent. In 2020 the total municipality population reached 410.
86.1 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Oval for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 34 | 13.9 |
| Regular high school diploma | 72 | 29.4 |
| GED or alternative credential | 6 | 2.4 |
| Some college, less than 1 year | 11 | 4.5 |
| Some college, 1 or more years, no degree | 35 | 14.3 |
| Associate's degree | 42 | 17.1 |
| Bachelor's degree | 24 | 9.8 |
| Master's degree | 15 | 6.1 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 6 | 2.4 |
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