Andover is a town in northwestern Day County, South Dakota, United States. The population was 66 at the 2020 census.
History
A post office called Andover was established in 1881. The town most likely takes its name from Andover, Massachusetts.
Geography
According to the United States Census Bureau, the town has a total area of , all land.
Demographics
2020 Census
As of the census of 2020, there were 66 people, 35 households and 11 families residing in the town. The racial makeup of the town was 86.4% White and Hispanic or Latino of any race were 6% of the population.
2010 census
As of the census of 2010, there were 91 people, 42 households, and 24 families residing in the town. The population density was . There were 60 housing units at an average density of . The racial makeup of the town was 95.6% White and 4.4% from other races. Hispanic or Latino of any race were 16.5% of the population.
There were 42 households, of which 23.8% had children under the age of 18 living with them, 50.0% were married couples living together, 4.8% had a female householder with no husband present, 2.4% had a male householder with no wife present, and 42.9% were non-families. 40.5% of all households were made up of individuals, and 26.2% had someone living alone who was 65 years of age or older. The average household size was 2.17 and the average family size was 2.79.
The median age in the town was 50.8 years. 16.5% of residents were under the age of 18; 5.5% were between the ages of 18 and 24; 19.8% were from 25 to 44; 37.4% were from 45 to 64; and 20.9% were 65 years of age or older. The gender makeup of the town was 54.9% male and 45.1% female.
2000 census
As of the census