This was 2.1 percent lower than the state average of 38 percent. In 2020 the total municipality population reached 246.
88.5 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Houstonia for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 24 | 11.5 |
| Regular high school diploma | 75 | 35.9 |
| GED or alternative credential | 0 | 0 |
| Some college, less than 1 year | 4 | 1.9 |
| Some college, 1 or more years, no degree | 31 | 14.8 |
| Associate's degree | 2 | 1 |
| Bachelor's degree | 59 | 28.2 |
| Master's degree | 2 | 1 |
| Professional school degree | 6 | 2.9 |
| Doctorate degree | 6 | 2.9 |
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