This was 12.8 percent lower than the state average of 43.7 percent. In 2020 the total municipality population reached 222.
98.3 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Crab Orchard for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 3 | 1.7 |
| Regular high school diploma | 31 | 17.4 |
| GED or alternative credential | 13 | 7.3 |
| Some college, less than 1 year | 25 | 14 |
| Some college, 1 or more years, no degree | 51 | 28.7 |
| Associate's degree | 31 | 17.4 |
| Bachelor's degree | 18 | 10.1 |
| Master's degree | 6 | 3.4 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 0 | 0 |
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