This was 27.6 percent higher than the state average of 38 percent. In 2020 the total municipality population reached 18,102.
97 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Manchester for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 373 | 3 |
| Regular high school diploma | 1,394 | 11.3 |
| GED or alternative credential | 108 | 0.9 |
| Some college, less than 1 year | 545 | 4.4 |
| Some college, 1 or more years, no degree | 1,837 | 14.8 |
| Associate's degree | 820 | 6.6 |
| Bachelor's degree | 4,157 | 33.6 |
| Master's degree | 2,377 | 19.2 |
| Professional school degree | 418 | 3.4 |
| Doctorate degree | 356 | 2.9 |
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