Erwin is a town in Kingsbury County, South Dakota, United States. As of the 2020 census, Erwin had a population of 40.
History
A post office has been in operation at Erwin since 1882. The town site was platted in 1887. James Irwin Hollister, an early postmaster, gave the town his name.
Demographics
2010 census
As of the census of 2010, there were 45 people, 22 households, and 15 families residing in the town. The population density was . There were 29 housing units at an average density of . The racial makeup of the town was 97.8% White and 2.2% from two or more races. Hispanic or Latino of any race were 6.7% of the population.
There were 22 households, of which 13.6% had children under the age of 18 living with them, 54.5% were married couples living together, 9.1% had a female householder with no husband present, 4.5% had a male householder with no wife present, and 31.8% were non-families. 31.8% of all households were made up of individuals, and 13.6% had someone living alone who was 65 years of age or older. The average household size was 2.05 and the average family size was 2.53.
The median age in the town was 59.5 years. 22.2% of residents were under the age of 18; 2.1% were between the ages of 18 and 24; 6.6% were from 25 to 44; 28.9% were from 45 to 64; and 40% were 65 years of age or older. The gender makeup of the town was 51.1% male and 48.9% female.
2000 census
As of the census