This was 7.2 percent lower than the state average of 38 percent. In 2020 the total municipality population reached 54.
84.6 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Ritchey for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 6 | 15.4 |
| Regular high school diploma | 12 | 30.8 |
| GED or alternative credential | 0 | 0 |
| Some college, less than 1 year | 9 | 23.1 |
| Some college, 1 or more years, no degree | 0 | 0 |
| Associate's degree | 7 | 17.9 |
| Bachelor's degree | 1 | 2.6 |
| Master's degree | 2 | 5.1 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 2 | 5.1 |
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