This was 8.4 percent lower than the state average of 47.4 percent. In 2020 the total municipality population reached 1,756.
90.8 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Chatham for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 116 | 9.2 |
| Regular high school diploma | 196 | 15.6 |
| GED or alternative credential | 69 | 5.5 |
| Some college, less than 1 year | 72 | 5.7 |
| Some college, 1 or more years, no degree | 315 | 25 |
| Associate's degree | 52 | 4.1 |
| Bachelor's degree | 279 | 22.2 |
| Master's degree | 118 | 9.4 |
| Professional school degree | 35 | 2.8 |
| Doctorate degree | 6 | 0.5 |
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