| Place Name | Cottage Hills |
| Place Type | Unincorporated |
| ZIP Code(s) | 62018 |
| County | Madison County |
| Area Code(s) | 618 |
| Timezone | Central Daylight Time (CDT) |
| Population () | |
| Metro/Micro Stats Area | St. Louis, MO-IL |
| US Congressional District(s) | Illinois 13th |
| State House Districts | 111 |
| State Senate Districts | 56 |