This was 5.7 percent lower than the state average of 33.6 percent. In 2020 the total municipality population reached 332.
74.1 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Smithland for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 64 | 25.9 |
| Regular high school diploma | 55 | 22.3 |
| GED or alternative credential | 3 | 1.2 |
| Some college, less than 1 year | 18 | 7.3 |
| Some college, 1 or more years, no degree | 38 | 15.4 |
| Associate's degree | 14 | 5.7 |
| Bachelor's degree | 35 | 14.2 |
| Master's degree | 20 | 8.1 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 0 | 0 |
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