This was 24.9 percent lower than the state average of 41.1 percent. In 2020 the total municipality population reached 772.
84.3 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Essex for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 99 | 15.7 |
| Regular high school diploma | 248 | 39.3 |
| GED or alternative credential | 21 | 3.3 |
| Some college, less than 1 year | 36 | 5.7 |
| Some college, 1 or more years, no degree | 125 | 19.8 |
| Associate's degree | 24 | 3.8 |
| Bachelor's degree | 53 | 8.4 |
| Master's degree | 10 | 1.6 |
| Professional school degree | 7 | 1.1 |
| Doctorate degree | 8 | 1.3 |

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