2020 census
As of the 2020 census, there were 2,330 people, 936 households, and 630 families residing in the county. [12] The population density was 4.1 inhabitants per square mile (1.6/km2). Of the residents, 24.2% were under the age of 18 and 20.9% were 65 years of age or older; the median age was 40.5 years. For every 100 females there were 107.9 males, and for every 100 females age 18 and over there were 108.6 males. [12]
The racial makeup of the county was 93.8% White, 0.1% Black or African American, 1.1% American Indian and Alaska Native, 0.4% Asian, 0.4% from some other race, and 4.2% from two or more races. Hispanic or Latino residents of any race comprised 2.4% of the population. [13]
There were 936 households in the county, of which 31.4% had children under the age of 18 living with them and 16.8% had a female householder with no spouse or partner present. About 28.7% of all households were made up of individuals and 13.1% had someone living alone who was 65 years of age or older. [12]
There were 1,134 housing units, of which 17.5% were vacant. Among occupied housing units, 78.2% were owner-occupied and 21.8% were renter-occupied. The homeowner vacancy rate was 1.6% and the rental vacancy rate was 6.8%. [12]
2010 census
As of the 2010 census, there were 2,355 people, 975 households, and 630 families in the county. The population density was 4.1 inhabitants per square mile (1.6/km2). There were 1,172 housing units at an average density of 2.1 units per square mile (0.81 units/km2). The racial makeup of the county was 98.0% white, 0.3% American Indian, 0.2% Asian, 0.6% from other races, and 1.1% from two or more races. Those of Hispanic or Latino origin made up 1.2% of the population. In terms of ancestry.
Of the 975 households, 24.2% had children under the age of 18 living with them, 55.0% were married couples living together, 6.3% had a female householder with no husband present, 35.4% were non-families, and 31.1% of all households were made up of individuals. The average household size was 2.24 and the average family size was 2.79. The median age was 47.1 years.
The median income for a household in the county was $44,732 and the median income for a family was $56,304. Males had a median income of $32,361 versus $23,724 for females. The per capita income for the county was $21,055. About 7.7% of families and 12.7% of the population were below the poverty line, including 21.4% of those under age 18 and 15.1% of those age 65 or over.
United States
South Dakota 
