This was 14.6 percent lower than the state average of 43.7 percent. In 2020 the total municipality population reached 3,228.
92.9 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Westville for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 148 | 7.1 |
| Regular high school diploma | 614 | 29.5 |
| GED or alternative credential | 218 | 10.5 |
| Some college, less than 1 year | 194 | 9.3 |
| Some college, 1 or more years, no degree | 300 | 14.4 |
| Associate's degree | 278 | 13.4 |
| Bachelor's degree | 254 | 12.2 |
| Master's degree | 50 | 2.4 |
| Professional school degree | 22 | 1.1 |
| Doctorate degree | 0 | 0 |
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