Editing DuPage County, Illinois (section)

=== 2010 Census ===
There were 325,601 households, out of which 37.00% had children under the age of 18 living with them, 60.90% were [[Marriage|married couples]] living together, 7.90% had a female householder with no husband present and 28.00% were non-families. 22.90% of all households were made up of individuals, and 6.80% had someone living alone who was 65 years of age or older. The average household size was 2.73 and the average family size was 3.27.

In the county, 26.70% of the population was under the age of 18, 8.20% was from 18 to 24, 32.40% from 25 to 44, 22.80% from 45 to 64 and 9.80% was 65 years of age or older. The median age was 35 years. For every 100 females, there were 97.20 males. For every 100 females, age 18 and over, there were 94.20 males.

The median income for a household in the county was $98,441 and the median income for a family was $113,086.<ref name="GR2">{{cite web|url=http://factfinder.census.gov/servlet/ACSSAFFFacts?_event=Search&geo_id=05000US13113&_geoContext=01000US%7C04000US13%7C05000US13113&_street=&_county=dupage&_cityTown=dupage&_state=04000US17&_zip=&_lang=en&_sse=on&ActiveGeoDiv=geoSelect&_useEV=&pctxt=fph&pgsl=050&_submenuId=factsheet_1&ds_name=ACS_2007_3YR_SAFF&_ci_nbr=null&qr_name=null&reg=null%3Anull&_keyword=&_industry=|publisher=[[United States Census Bureau]]|access-date=April 2, 2009|title=American FactFinder|url-status=dead|archive-url=https://archive.today/20200211180733/http://factfinder.census.gov/servlet/ACSSAFFFacts?_event=Search&geo_id=05000US13113&_geoContext=01000US%7C04000US13%7C05000US13113&_street=&_county=dupage&_cityTown=dupage&_state=04000US17&_zip=&_lang=en&_sse=on&ActiveGeoDiv=geoSelect&_useEV=&pctxt=fph&pgsl=050&_submenuId=factsheet_1&ds_name=ACS_2007_3YR_SAFF&_ci_nbr=null&qr_name=null&reg=null:null&_keyword=&_industry=|archive-date=February 11, 2020}}</ref> Males had a median income of $60,909 versus $41,346 for females. The mean or average income for a family in DuPage County is $121,009, according to the 2005 census. The [[per capita income]] for the county was $38,458. About 2.40% of families and 3.60% of the population were below the [[poverty threshold|poverty line]], including 3.90% of those under age 18 and 4.30% of those age 65 or over.<ref name="GR2" />