This was 15.9 percent lower than the state average of 41.8 percent. In 2020 the total municipality population reached 713.
76.5 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Norwalk for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 96 | 23.5 |
| Regular high school diploma | 142 | 34.7 |
| GED or alternative credential | 30 | 7.3 |
| Some college, less than 1 year | 9 | 2.2 |
| Some college, 1 or more years, no degree | 26 | 6.4 |
| Associate's degree | 54 | 13.2 |
| Bachelor's degree | 42 | 10.3 |
| Master's degree | 10 | 2.4 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 0 | 0 |
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