Prospect Heights is a city in Cook County, Illinois, United States and is a suburb of Chicago. The population was 16,256 at the 2010 census.GeographyProspect Heights is located at .According to the 2010 census, Prospect Heights has a total area of 4.269sqmi, of which 4.24sqmi is land and 0.029sqmi is water.DemographicsAs of the census of 2000, there were 17,081 people, 6,379 households, and 4,433 families residing in the city. The population density was 4,011.1 people per square mile (1,548.1/km²). There were 6,573 housing units at an average density of 1,543.5 per square mile (595.7/km²). The racial makeup of the city was 77.41% White, 1.76% African American, 0.25% Native American, 4.37% Asian, 0.05% Pacific Islander, 13.82% from other races, and 2.35% from two or more races. Hispanic or Latino of any race were 27.58% of the population.There were 6,379 households out of which 31.9% had children under the age of 18 living with them, 57.1% were married couples living together, 7.6% had a female householder with no husband present, and 30.5% were non-families. 25.1% of all households were made up of individuals and 8.7% had someone living alone who was 65 years of age or older. The average household size was 2.68 and the average family size was 3.21.
