Potwin is a city in Butler County, Kansas, United States. It is named after the town site land owner Charles Potwin. As of the 2010 census, the city population was 449.
Potwin is located at 37°56′20″N 97°01′09″W / 37.938898°N 97.019034°W / 37.938898; -97.019034 (37.938898, -97.019034). According to the United States Census Bureau, the city has a total area of 0.24 square miles (0.62 km), all of it land.
As of the census of 2010, there were 449 people, 181 households, and 130 families residing in the city. The population density was 1,870.8 inhabitants per square mile (722.3/km). There were 205 housing units at an average density of 854.2 per square mile (329.8/km). The racial makeup of the city was 92.2% White, 0.2% African American, 1.3% Native American, 0.7% Asian, 2.2% from other races, and 3.3% from two or more races. Hispanic or Latino of any race were 5.6% of the population.
There were 181 households of which 30.4% had children under the age of 18 living with them, 55.8% were married couples living together, 9.9% had a female householder with no husband present, 6.1% had a male householder with no wife present, and 28.2% were non-families. 24.9% of all households were made up of individuals and 11.1% had someone living alone who was 65 years of age or older. The average household size was 2.48 and the average family size was 2.94.
The median age in the city was 39.4 years. 25.2% of residents were under the age of 18; 8.2% were between the ages of 18 and 24; 24.1% were from 25 to 44; 28.5% were from 45 to 64; and 14% were 65 years of age or older. The gender makeup of the city was 49.9% male and 50.1% female.
As of the census of 2000, there were 457 people, 187 households, and 123 families residing in the city. The population density was 2,001.1 people per square mile (767.2/km). There were 208 housing units at an average density of 910.8 per square mile (349.2/km).
The racial makeup of the city was 95.40% White, 1.53% Native American, 0.22% Asian, and 2.84% from two or more races. Hispanic or Latino of any race were 0.88% of the population.
There were 187 households out of which 33.2% had children under the age of 18 living with them, 53.5% were married couples living together, 8.0% had a female householder with no husband present, and 34.2% were non-families. 28.3% of all households were made up of individuals and 17.1% 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 2.95.
In the city, the population was spread out with 26.0% under the age of 18, 9.0% from 18 to 24, 28.0% from 25 to 44, 21.9% from 45 to 64, and 15.1% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 100.4 males. For every 100 females age 18 and over, there were 94.3 males.
The median income for a household in the city was $39,091, and the median income for a family was $42,500. Males had a median income of $31,544 versus $18,375 for females. The per capita income for the city was $18,254. About 4.7% of families and 8.3% of the population were below the poverty line, including 6.8% of those under age 18 and 8.6% of those age 65 or over.