This was 11.4 percent lower than the state average of 42.7 percent. In 2020 the total municipality population reached 861.
95.2 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Linn Valley for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 33 | 4.8 |
| Regular high school diploma | 224 | 32.5 |
| GED or alternative credential | 27 | 3.9 |
| Some college, less than 1 year | 68 | 9.9 |
| Some college, 1 or more years, no degree | 122 | 17.7 |
| Associate's degree | 62 | 9 |
| Bachelor's degree | 129 | 18.7 |
| Master's degree | 25 | 3.6 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 0 | 0 |
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