This was 3.6 percent higher than the state average of 37.7 percent. In 2020 the total municipality population reached 904.
95.2 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Ostrander for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 26 | 4.8 |
| Regular high school diploma | 175 | 32.1 |
| GED or alternative credential | 2 | 0.4 |
| Some college, less than 1 year | 34 | 6.2 |
| Some college, 1 or more years, no degree | 83 | 15.2 |
| Associate's degree | 32 | 5.9 |
| Bachelor's degree | 120 | 22 |
| Master's degree | 48 | 8.8 |
| Professional school degree | 14 | 2.6 |
| Doctorate degree | 11 | 2 |
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