Winfield, Kansas

===2010 census===
As of the [[census]]<ref name ="wwwcensusgov">{{cite web|title=U.S. Census website|url=https://www.census.gov|publisher=[[United States Census Bureau]]|access-date=2012-07-06}}</ref> of 2010, there were 12,301 people, 4,600 households, and 2,848 families residing in the city.<ref name="Census2010">{{cite web|title=2010 City Population and Housing Occupancy Status |url=http://factfinder.census.gov/faces/tableservices/jsf/pages/productview.xhtml?pid=DEC_10_PL_GCTPL2.ST13&prodType=table |publisher=U.S. Census Bureau |access-date=March 6, 2011 }}{{dead link|bot=medic|date=April 2020}}{{cbignore|bot=medic}}</ref> The [[population density]] was {{convert|1064.1|PD/sqmi|PD/km2|1}}. There were 5,217 housing units at an average density of {{convert|451.3|/sqmi|/km2|1}}. The racial makeup of the city was 85.7% [[White (U.S. census)|White]], 3.9% [[African American (U.S. census)|African American]], 1.3% [[Native American (U.S. census)|Native American]], 3.9% [[Asian (U.S. census)|Asian]], 1.8% from [[Race (U.S. census)|other races]], and 3.4% from two or more races. [[Hispanic (U.S. census)|Hispanic]] or [[Latino (U.S. census)|Latino]] people of any race were 6.1% of the population.

There were 4,600 households, of which 32.0% had children under the age of 18 living with them, 44.7% were [[Marriage|married couples]] living together, 12.2% had a female householder with no husband present, 5.1% had a male householder with no wife present, and 38.1% were non-families. 32.5% of all households were made up of individuals, and 13.8% had someone living alone who was 65 years of age or older. The average household size was 2.37 and the average family size was 2.98.

The median age in the city was 36.7 years. 23% of residents were under the age of 18; 12% were between the ages of 18 and 24; 25% were from 25 to 44; 24.4% were from 45 to 64; and 15.7% were 65 years of age or older. The gender makeup of the city was 50.7% male and 49.3% female.