Wellington is a city in and the county seat of Sumner County, Kansas, United States. As of the 2010 census, the city population was 8,172.
Wellington is located at 37°16′2″N 97°24′0″W / 37.26722°N 97.40000°W / 37.26722; -97.40000 (37.267289, -97.400061), at an elevation of 1230 feet. According to the United States Census Bureau, the city has a total area of 8.19 square miles (21.21 km), of which, 7.61 square miles (19.71 km) is land and 0.58 square miles (1.50 km) is water.
As of the 2010 United States Census, there were 8,172 people, 3,246 households, and 2,105 families residing in the city. The population density was 1,073.9 inhabitants per square mile (414.6/km). There were 3,736 housing units at an average density of 490.9 per square mile (189.5/km). The racial makeup of the city was 91.0% White, 1.7% African American, 1.5% Native American, 0.3% Asian, 2.0% from other races, and 3.5% from two or more races. Hispanic or Latino of any race were 8.3% of the population.
There were 3,246 households of which 33.2% had children under the age of 18 living with them, 47.0% were married couples living together, 12.1% had a female householder with no husband present, 5.7% had a male householder with no wife present, and 35.2% were non-families. 30.6% of all households were made up of individuals and 14% had someone living alone who was 65 years of age or older. The average household size was 2.44 and the average family size was 3.03.
The median age in the city was 37.7 years. 27.2% of residents were under the age of 18; 7.3% were between the ages of 18 and 24; 23.2% were from 25 to 44; 26.1% were from 45 to 64; and 16.1% were 65 years of age or older. The gender makeup of the city was 48.7% male and 51.3% female.
As of the 2000 United States Census, there were 8,647 people, 3,422 households, and 2,306 families residing in the city. The population density was 1,529.6 people per square mile (590.9/km²). There were 3,795 housing units at an average density of 671.3 per square mile (259.3/km²). The racial makeup of the city was 92.36% White, 1.71% African American, 1.24% Native American, 0.29% Asian, 0.10% Pacific Islander, 2.58% from other races, and 1.72% from two or more races. Hispanic or Latino of any race were 7.26% of the population.
There were 3,422 households out of which 32.9% had children under the age of 18 living with them, 53.1% were married couples living together, 9.9% had a female householder with no husband present, and 32.6% were non-families. 29.4% of all households were made up of individuals and 14.4% had someone living alone who was 65 years of age or older. The average household size was 2.47 and the average family size was 3.05.
In the city, the population was spread out with 27.6% under the age of 18, 9.0% from 18 to 24, 25.6% from 25 to 44, 20.9% from 45 to 64, and 16.9% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 93.6 males. For every 100 females age 18 and over, there were 90.7 males.
The median income for a household in the city was $35,410, and the median income for a family was $43,493. Males had a median income of $34,368 versus $22,254 for females. The per capita income for the city was $16,790. About 8.9% of families and 11.5% of the population were below the poverty line, including 13.6% of those under age 18 and 7.3% of those age 65 or over.