This was 4.2 percent lower than the state average of 43.7 percent. In 2020 the total municipality population reached 17,172.
90.9 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Palos Hills for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 1,152 | 9.1 |
| Regular high school diploma | 3,334 | 26.4 |
| GED or alternative credential | 431 | 3.4 |
| Some college, less than 1 year | 948 | 7.5 |
| Some college, 1 or more years, no degree | 1,791 | 14.2 |
| Associate's degree | 1,366 | 10.8 |
| Bachelor's degree | 2,196 | 17.4 |
| Master's degree | 1,144 | 9 |
| Professional school degree | 119 | 0.9 |
| Doctorate degree | 167 | 1.3 |
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