This was 4.4 percent lower than the state average of 39.6 percent. In 2020 the total municipality population reached 8,073.
89.4 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Hillsdale for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 459 | 10.6 |
| Regular high school diploma | 1,208 | 27.9 |
| GED or alternative credential | 186 | 4.3 |
| Some college, less than 1 year | 262 | 6 |
| Some college, 1 or more years, no degree | 695 | 16 |
| Associate's degree | 301 | 6.9 |
| Bachelor's degree | 611 | 14.1 |
| Master's degree | 404 | 9.3 |
| Professional school degree | 102 | 2.4 |
| Doctorate degree | 109 | 2.5 |

Alerts Sign-up