This was 3.6 percent lower than the state average of 36 percent. In 2020 the total municipality population reached 3,381.
98 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Fort Branch for 2020*
| Degree | Number of people | Percentage of population | 
|---|---|---|
| No degree | 45 | 2 | 
| Regular high school diploma | 821 | 37.1 | 
| GED or alternative credential | 96 | 4.3 | 
| Some college, less than 1 year | 141 | 6.4 | 
| Some college, 1 or more years, no degree | 391 | 17.7 | 
| Associate's degree | 304 | 13.8 | 
| Bachelor's degree | 315 | 14.3 | 
| Master's degree | 74 | 3.3 | 
| Professional school degree | 13 | 0.6 | 
| Doctorate degree | 10 | 0.5 | 

              
                
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