Hanover Park is a village in Cook and DuPage counties in the U.S. state of Illinois, a suburb of Chicago. The population was 37,470 at the 2020 census. Ontarioville is a neighborhood within the village. Geography Hanover Park is located at (41.978827, −88.146109). According to the 2021 census gazetteer files, Hanover Park has a total area of , of which (or 98.42%) is land and (or 1.58%) is water. Demographics As of the 2020 census there were 37,470 people, 11,064 households, and 9,177 families residing in the village. The population density was . There were 11,732 housing units at an average density of . The racial makeup of the village was 37.14% White, 7.10% African American, 1.64% Native American, 17.02% Asian, 0.06% Pacific Islander, 21.38% from other races, and 15.67% from two or more races. Hispanic or Latino of any race were 41.53% of the population. There were 11,064 households, out of which 78.49% had children under the age of 18 living with them, 59.01% were married couples living together, 16.99% had a female householder with no husband present, and 17.06% were non-families. 12.41% of all households were made up of individuals, and 4.98% had someone living alone who was 65 years of age or older. The average household size was 3.71 and the average family size was 3.42. The village's age distribution consisted of 27.9% under the age of 18, 9.1% from 18 to 24, 28.5% from 25 to 44, 24.1% from 45 to 64, and 10.4% who were 65 years of age or older. The median age was 34.2 years. For every 100 females, there were 90.9 males. For every 100 females age 18 and over, there were 95.8 males. The median income for a household in the village was $77,367, and the median income for a family was $80,815. Males had a median income of $43,375 versus $31,368 for females. The per capita income for the village was $26,823. About 11.4% of families and 12.8% of the population were below the poverty line, including 18.6% of those under age 18 and 10.4% 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 them to a separate category. Hispanics/Latinos can be of any race. Education The town is served by several school districts. One is Elgin Area School District U46, a Unit