About This Place
Prospect Heights is a city in Cook County, Illinois, United States, which is a suburb of Chicago. The population was 17,081 at the 2000 census.
Prospect Heights is located at 42°6′20″N 87°55′41″W / 42.10556°N 87.92806°W / 42.10556; -87.92806 (42.105576, -87.928168).
According to the United States Census Bureau, the city has a total area of 4.3 square miles (11.1 km²), of which, 4.3 square miles (11.0 km²) of it is land and 0.04 square miles (0.1 km²) of it (0.47%) is water.