This was 14.6 percent lower than the state average of 41 percent. In 2020 the total municipality population reached 6,015.
87.4 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 | 441 | 12.6 |
| Regular high school diploma | 1,142 | 32.5 |
| GED or alternative credential | 244 | 6.9 |
| Some college, less than 1 year | 265 | 7.5 |
| Some college, 1 or more years, no degree | 493 | 14 |
| Associate's degree | 125 | 3.6 |
| Bachelor's degree | 442 | 12.6 |
| Master's degree | 238 | 6.8 |
| Professional school degree | 59 | 1.7 |
| Doctorate degree | 63 | 1.8 |
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