This was 0.7 percent lower than the state average of 39.6 percent. In 2020 the total municipality population reached 8,361.
95.9 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Tecumseh for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 239 | 4.1 |
| Regular high school diploma | 1,742 | 29.5 |
| GED or alternative credential | 235 | 4 |
| Some college, less than 1 year | 340 | 5.8 |
| Some college, 1 or more years, no degree | 1,048 | 17.8 |
| Associate's degree | 749 | 12.7 |
| Bachelor's degree | 1,039 | 17.6 |
| Master's degree | 422 | 7.2 |
| Professional school degree | 63 | 1.1 |
| Doctorate degree | 21 | 0.4 |

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