This was 19.7 percent lower than the state average of 43.7 percent. In 2020 the total municipality population reached 948.
88.5 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Franklin Grove for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 75 | 11.5 |
| Regular high school diploma | 251 | 38.6 |
| GED or alternative credential | 23 | 3.5 |
| Some college, less than 1 year | 50 | 7.7 |
| Some college, 1 or more years, no degree | 96 | 14.7 |
| Associate's degree | 60 | 9.2 |
| Bachelor's degree | 83 | 12.7 |
| Master's degree | 12 | 1.8 |
| Professional school degree | 1 | 0.2 |
| Doctorate degree | 0 | 0 |
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