Winfield, Kansas

==Demographics==
{{US Census population
|align=
|1870= 472
|1880= 2844
|1890= 5184
|1900= 5554
|1910= 6700
|1920= 7933
|1930= 9398
|1940= 9506
|1950= 10264
|1960= 11117
|1970= 11405
|1980= 10736
|1990= 11931
|2000= 12206
|2010= 12301
|2020= 11777
|estyear=
|estimate=
|estref=
|align-fn=center
|footnote=[https://www.census.gov/programs-surveys/decennial-census.html U.S. Decennial Census]<br/>2010-2020<ref name="Census-2020-QF"/>
}}

===2020 census===
The [[2020 United States census|2020 United States census]]<ref>{{Cite web |title=Explore Census Data |url=https://data.census.gov| access-date=2023-12-15 |website=data.census.gov}}</ref> counted 11,777 people, 4,339 households, and 2,687 families in Winfield. The population density was 1,057.2 per square mile (408.1/km{{sup|2}}). There were 5,136 housing units at an average density of 461.0 per square mile (178.0/km{{sup|2}}). The racial makeup was 80.28% (9,454) [[White (U.S. Census)|white]], 4.14% (487) [[African American (U.S. Census)|black or African-American]], 1.55% (182) [[Native American (U.S. Census)|Native American]], 3.49% (411) [[Asian (U.S. Census)|Asian]], 0.66% (78) [[Pacific Islander (U.S. Census)|Pacific Islander]], 2.42% (285) from [[Race (United States Census)|other races]], and 7.47% (880) from two or more races. [[Hispanic (U.S. Census)|Hispanic]] or [[Latino (U.S. Census)|Latino]] of any race was 9.0% (1,083) of the population.

Of the 4,339 households, 30.4% had children under the age of 18; 45.1% were married couples living together; 27.1% had a female householder with no husband present. 30.4% of households consisted of individuals and 14.6% had someone living alone who was 65 years of age or older. The average household size was 2.4 and the average family size was 3.1.

23.7% of the population was under the age of 18, 13.2% from 18 to 24, 24.5% from 25 to 44, 21.6% from 45 to 64, and 18.8% who were 65 years of age or older. The median age was 35.0 years. For every 100 females, the population had 106.7 males. For every 100 females ages 18 and older, there were 109.8 males.

The 2016-2020 5-year [[American Community Survey|American Community Survey]]<ref>{{Cite web |title=Explore Census Data |url=https://data.census.gov|access-date=2023-12-15|website=data.census.gov}}</ref> estimates show that the median household income was $48,027 (with a margin of error of +/- $3,412) and the median family income $57,236 (+/- $5,345). Males had a median income of $31,570 (+/- $3,388) versus $25,677 (+/- $2,934) for females. The median income for those above 16 years old was $28,904 (+/- $3,107). Approximately, 12.5% of families and 18.7% of the population were below the [[poverty line]], including 24.2% of those under the age of 18 and 12.7% of those ages 65 or over.

===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.

===2000 census===
As of the [[census]] of 2000,<ref name="GR2">{{cite web|url=https://www.census.gov|publisher=[[United States Census Bureau]]|access-date=2008-01-31|title=U.S. Census website}}</ref> there were 12,206 people, 4,627 households, and 2,952 families residing in the city. The population density was {{convert|1,104.0|PD/sqmi|PD/km2|sp=us|adj=off}}. There were 5,049 housing units at an average density of {{convert|456.7|/sqmi|/km2|sp=us|adj=off}}. The racial makeup of the city was 88.06% [[Race (United States census)|White]], 3.26% Black or African American, 1.08% Native American, 3.74% Asian, 0.02% Pacific Islander, 1.73% from other races, and 2.12% from two or more races. Hispanic or Latino people of any race were 4.66% of the population.

There were 4,627 households, out of which 31.9% had children under the age of 18 living with them, 49.6% were [[Marriage|married couples]] living together, 10.7% had a female householder with no husband present, and 36.2% were non-families. 32.4% of all households were made up of individuals, and 16.9% had someone living alone who was 65 years of age or older. The average household size was 2.36 and the average family size was 3.00.

In the city, the population was spread out, with 24.9% under the age of 18, 11.8% from 18 to 24, 27.4% from 25 to 44, 19.4% from 45 to 64, and 16.6% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 98.5 males. For every 100 females age 18 and over, there were 97.0 males.

The [[Median household income|median income for a household]] in the city was $34,443, and the median income for a family was $44,539. Males had a median income of $31,768 versus $21,605 for females. The [[per capita income]] for the city was $19,162. About 9.9% of families and 13.8% of the population were below the [[poverty line]], including 18.6% of those under age 18 and 11.4% of those age 65 or over.