This was 19.9 percent lower than the state average of 37.7 percent. In 2020 the total municipality population reached 340.
88.8 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Senecaville for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 30 | 11.2 |
| Regular high school diploma | 107 | 39.8 |
| GED or alternative credential | 16 | 5.9 |
| Some college, less than 1 year | 27 | 10 |
| Some college, 1 or more years, no degree | 41 | 15.2 |
| Associate's degree | 32 | 11.9 |
| Bachelor's degree | 7 | 2.6 |
| Master's degree | 9 | 3.3 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 0 | 0 |
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