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.
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 2010 census, Prospect Heights has a total area of 4.269 square miles (11.06 km), of which 4.24 square miles (10.98 km) (or 99.32%) is land and 0.029 square miles (0.08 km) (or 0.68%) is water.
As 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.
In the city, the population was spread out with 24.2% under the age of 18, 9.2% from 18 to 24, 33.4% from 25 to 44, 21.7% from 45 to 64, and 11.4% who were 65 years of age or older. The median age was 35 years. For every 100 females, there were 103.6 males. For every 100 females age 18 and over, there were 102.6 males.
The median income for a household in the city was $55,641, and the median income for a family was $63,382. Males had a median income of $40,317 versus $32,455 for females. The per capita income for the city was $28,200. About 3.7% of families and 4.3% of the population were below the poverty line, including 4.9% of those under age 18 and 1.4% of those age 65 or over.
On April 5, 2011, Nicholas “Nick” Helmer was elected Mayor of Prospect Heights with 70% of the vote. Less than thirty days after being sworn in, Mayor Helmer rehired police officers that were laid off by the prior administration.