This was 1.1 percent lower than the state average of 38 percent. In 2020 the total municipality population reached 446.
97 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Houston Lake for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 10 | 3 |
| Regular high school diploma | 93 | 27.9 |
| GED or alternative credential | 9 | 2.7 |
| Some college, less than 1 year | 20 | 6 |
| Some college, 1 or more years, no degree | 78 | 23.4 |
| Associate's degree | 73 | 21.9 |
| Bachelor's degree | 34 | 10.2 |
| Master's degree | 12 | 3.6 |
| Professional school degree | 2 | 0.6 |
| Doctorate degree | 2 | 0.6 |
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