This was 13.9 percent lower than the state average of 41.8 percent. In 2020 the total municipality population reached 222.
86.6 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Holcombe for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 24 | 13.4 |
| Regular high school diploma | 54 | 30.2 |
| GED or alternative credential | 6 | 3.4 |
| Some college, less than 1 year | 20 | 11.2 |
| Some college, 1 or more years, no degree | 25 | 14 |
| Associate's degree | 20 | 11.2 |
| Bachelor's degree | 26 | 14.5 |
| Master's degree | 0 | 0 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 4 | 2.2 |
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