Allen is a city in Lyon County, Kansas, United States. As of the 2010 census, the city population was 177.
Allen is located at 38°39′23″N 96°10′14″W / 38.65639°N 96.17056°W / 38.65639; -96.17056 (38.656472, -96.170511). According to the United States Census Bureau, the city has a total area of 0.27 square miles (0.70 km), all of it land.
Allen is part of the Emporia Micropolitan Statistical Area.
As of the census of 2010, there were 177 people, 77 households, and 46 families residing in the city. The population density was 655.6 inhabitants per square mile (253.1/km). There were 91 housing units at an average density of 337.0 per square mile (130.1/km). The racial makeup of the city was 96.0% White, 2.3% from other races, and 1.7% from two or more races. Hispanic or Latino of any race were 4.0% of the population.
There were 77 households of which 28.6% had children under the age of 18 living with them, 49.4% were married couples living together, 7.8% had a female householder with no husband present, 2.6% had a male householder with no wife present, and 40.3% were non-families. 36.4% of all households were made up of individuals and 13% had someone living alone who was 65 years of age or older. The average household size was 2.30 and the average family size was 3.07.
The median age in the city was 42.4 years. 26% of residents were under the age of 18; 3.8% were between the ages of 18 and 24; 23.7% were from 25 to 44; 28.7% were from 45 to 64; and 17.5% were 65 years of age or older. The gender makeup of the city was 53.1% male and 46.9% female.
As of the census of 2000, there were 211 people, 83 households, and 62 families residing in the city. The population density was 768.7 people per square mile (301.7/km²). There were 93 housing units at an average density of 338.8 per square mile (133.0/km²). The racial makeup of the city was 98.10% White, 0.47% African American and 1.42% Native American. Hispanic or Latino of any race were 0.95% of the population.
There were 83 households out of which 39.8% had children under the age of 18 living with them, 59.0% were married couples living together, 12.0% had a female householder with no husband present, and 25.3% were non-families. 24.1% of all households were made up of individuals and 14.5% had someone living alone who was 65 years of age or older. The average household size was 2.54 and the average family size was 3.00.
In the city, the population was spread out with 29.9% under the age of 18, 6.6% from 18 to 24, 28.4% from 25 to 44, 20.9% from 45 to 64, and 14.2% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 113.1 males. For every 100 females age 18 and over, there were 102.7 males.
The median income for a household in the city was $32,500, and the median income for a family was $39,792. Males had a median income of $30,000 versus $24,500 for females. The per capita income for the city was $15,855. About 10.2% of families and 8.0% of the population were below the poverty line, including 18.9% of those under the age of eighteen and none of those sixty five or over.