This was 0.3 percent higher than the state average of 43.7 percent. In 2020 the total municipality population reached 15,986.
84.6 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Prospect Heights for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 1,742 | 15.4 |
| Regular high school diploma | 1,927 | 17.1 |
| GED or alternative credential | 266 | 2.4 |
| Some college, less than 1 year | 803 | 7.1 |
| Some college, 1 or more years, no degree | 1,582 | 14 |
| Associate's degree | 849 | 7.5 |
| Bachelor's degree | 2,663 | 23.6 |
| Master's degree | 1,116 | 9.9 |
| Professional school degree | 262 | 2.3 |
| Doctorate degree | 75 | 0.7 |
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