This was 12.1 percent lower than the state average of 31.3 percent. In 2020 the total municipality population reached 445.
74.7 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Caldwell town for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 91 | 25.3 |
| Regular high school diploma | 74 | 20.6 |
| GED or alternative credential | 32 | 8.9 |
| Some college, less than 1 year | 15 | 4.2 |
| Some college, 1 or more years, no degree | 78 | 21.7 |
| Associate's degree | 32 | 8.9 |
| Bachelor's degree | 25 | 7 |
| Master's degree | 8 | 2.2 |
| Professional school degree | 4 | 1.1 |
| Doctorate degree | 0 | 0 |
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