This was 16.7 percent lower than the state average of 39.6 percent. In 2020 the total municipality population reached 2,082.
87.2 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Watervliet for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 162 | 12.8 |
| Regular high school diploma | 375 | 29.6 |
| GED or alternative credential | 41 | 3.2 |
| Some college, less than 1 year | 133 | 10.5 |
| Some college, 1 or more years, no degree | 267 | 21 |
| Associate's degree | 186 | 14.7 |
| Bachelor's degree | 72 | 5.7 |
| Master's degree | 30 | 2.4 |
| Professional school degree | 3 | 0.2 |
| Doctorate degree | 0 | 0 |

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