Palos Hills is a city in Cook County, Illinois, United States. It is a southwest suburb of Chicago. The city was established in 1958 and had reached a population of 18,530 in the 2020 census. It is the home of Moraine Valley Community College as well as Amos Alonzo Stagg High School. Geography According to the 2021 census gazetteer files, Palos Hills has a total area of , of which (or 98.97%) is land and (or 1.03%) is water. Demographics As of the 2020 census there were 18,530 people, 7,247 households, and 4,209 families residing in the city. The population density was . There were 7,697 housing units at an average density of . The racial makeup of the city was 81.70% White, 5.77% African American, 0.18% Native American, 2.17% Asian, 0.01% Pacific Islander, 3.39% from other races, and 6.77% from two or more races. Hispanic or Latino of any race were 10.19% of the population. The top reported ancestries as of 2020 where Polish (29.3%), German (12.7%), Irish (12.6%), Arab (9.6%), and Italian (8.3%). There were 7,247 households, out of which 38.84% had children under the age of 18 living with them, 43.63% were married couples living together, 10.17% had a female householder with no husband present, and 41.92% were non-families. 36.35% of all households were made up of individuals, and 17.01% had someone living alone who was 65 years of age or older. The average household size was 3.17 and the average family size was 2.34. The city's age distribution consisted of 18.1% under the age of 18, 8.2% from 18 to 24, 24.5% from 25 to 44, 27.5% from 45 to 64, and 21.8% who were 65 years of age or older. The median age was 44.6 years. For every 100 females, there were 83.3 males. For every 100 females age 18 and over, there were 77.3 males. The median income for a household in the city was $64,364, and the median income for a family was $81,045. Males had a median income of $57,339 versus $37,926 for females. The per capita income for the city was $34,564. About 9.3% of families and 12.0% of the population were below the poverty line, including 15.1% of those under age 18 and 11.6% of those age 65 or over. Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns