This was 19.4 percent lower than the state average of 37.7 percent. In 2020 the total municipality population reached 827.
89.6 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Arlington Heights for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 61 | 10.4 |
| Regular high school diploma | 181 | 31 |
| GED or alternative credential | 46 | 7.9 |
| Some college, less than 1 year | 102 | 17.5 |
| Some college, 1 or more years, no degree | 87 | 14.9 |
| Associate's degree | 49 | 8.4 |
| Bachelor's degree | 40 | 6.8 |
| Master's degree | 12 | 2.1 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 6 | 1 |
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