This was 13.8 percent lower than the state average of 41.1 percent. In 2020 the total municipality population reached 220.
87.9 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Wallingford for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 20 | 12.1 |
| Regular high school diploma | 57 | 34.5 |
| GED or alternative credential | 5 | 3 |
| Some college, less than 1 year | 10 | 6.1 |
| Some college, 1 or more years, no degree | 28 | 17 |
| Associate's degree | 27 | 16.4 |
| Bachelor's degree | 18 | 10.9 |
| Master's degree | 0 | 0 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 0 | 0 |
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