Willowbrook is a village in DuPage County, Illinois, United States. Per the 2020 census, the population was 9,236. It is a southwestern suburb of Chicago. History Willowbrook grew from the Ridgemoor subdivision. It was incorporated as a village in 1960 Geography The Village of Willowbrook is located at (41.767153, -87.949281). According to the 2021 census gazetteer files, Willowbrook has a total area of , of which (or 97.94%) is land and (or 2.06%) is water. Willowbrook is around from Chicago. It is bordered by the suburban villages of Hinsdale, Westmont, Clarendon Hills, Burr Ridge, and Darien, along with unincorporated areas of DuPage County. Demographics As of the 2020 census there were 9,236 people, 3,916 households, and 2,337 families residing in the village. The population density was . There were 4,509 housing units at an average density of . The racial makeup of the village was 71.77% White, 4.48% African American, 0.30% Native American, 14.63% Asian, 0.03% Pacific Islander, 2.75% from other races, and 6.03% from two or more races. Hispanic or Latino of any race were 7.94% of the population. There were 3,916 households, out of which 31.10% had children under the age of 18 living with them, 51.61% were married couples living together, 7.02% had a female householder with no husband present, and 40.32% were non-families. 35.29% of all households were made up of individuals, and 14.89% had someone living alone who was 65 years of age or older. The average household size was 2.82 and the average family size was 2.17. The village's age distribution consisted of 15.0% under the age of 18, 7.1% from 18 to 24, 24.5% from 25 to 44, 28.9% from 45 to 64, and 24.6% who were 65 years of age or older. The median age was 48.8 years. For every 100 females, there were 81.7 males. For every 100 females age 18 and over, there were 77.5 males. The median income for a household in the village was $86,364, and the median income for a family was $117,415. Males had a median income of $65,748 versus $45,833 for females. The per capita income for the village was $54,805. About 5.0% of families and 5.4% of the population were below the poverty line, including 4.9% of those under age 18 and 9.3% of those age 65 or over. Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from