This was 5.5 percent higher than the state average of 47.4 percent. In 2020 the total municipality population reached 706.
89.7 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Fincastle for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 50 | 10.3 |
| Regular high school diploma | 84 | 17.4 |
| GED or alternative credential | 35 | 7.2 |
| Some college, less than 1 year | 13 | 2.7 |
| Some college, 1 or more years, no degree | 46 | 9.5 |
| Associate's degree | 72 | 14.9 |
| Bachelor's degree | 99 | 20.5 |
| Master's degree | 50 | 10.3 |
| Professional school degree | 9 | 1.9 |
| Doctorate degree | 26 | 5.4 |
Alerts Sign-up