As of the census of 2010, there were 7,883 people, 2,939 households, and 2,363 families residing in the village. The population density was {{convert|991.6 people per square mile (382.9|PD/km<sup>2<sqmi|PD/sup>)km2|sp=us|adj=off}}. There were 3,188 housing units, at an average density of {{convert|401.0 per square mile (154.8|/km<sup>2<sqmi|/sup>)km2|sp=us|adj=off}}. The racial makeup was 71.8% [[White (U.S. Census)|White]], 2.0% [[African American (U.S. Census)|African American]], 23.2% [[Asian (U.S. Census)|Asian]], 0.1% [[Native Americans in the United States|Native American]], 0.7% [[Race (United States Census)|some other race]], and 2.2% from two or more races. [[Hispanic (U.S. Census)|Hispanic]] or [[Latino (U.S. Census)|Latino]] of any race were 4.3% of the population.<ref name="Census 2010 DP">{{cite web| url=http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_DP/DPDP1/1600000US1754534| archive-url=https://archive.today/20200210210723/http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_DP/DPDP1/1600000US1754534| url-status=dead| archive-date=February 10, 2020| title=Profile of General Population and Housing Characteristics: 2010 Demographic Profile Data (DP-1): Oak Brook village, Illinois| publisher=U.S. Census Bureau, American Factfinder| access-date=March 15, 2013}}</ref>
There were 2,939 households, out of which 24.2% had children under the age of 18 living with them, 73.6% were headed by married couples living together, 4.7% had a female householder with no husband present, and 19.6% were non-families. 18.2% of all households were made up of individuals, and 12.7% were someone living alone who was 65 years of age or older. The average household size was 2.63, and the average family size was 2.99.<ref name="Census 2010 DP"/>
