Carthage is a city in Miner County, South Dakota, United States. The population was 127 at the 2020 census.
History
Carthage was platted in 1883. It was named after Carthage, New York.
Geography
According to the United States Census Bureau, the city has a total area of , of which is land and is water.
Demographics
2020 census
As of the 2020 census, Carthage had a population of 127. The median age was 47.3 years. 21.3% of residents were under the age of 18 and 33.9% of residents were 65 years of age or older. For every 100 females there were 95.4 males, and for every 100 females age 18 and over there were 88.7 males age 18 and over.
There were 65 households in Carthage, of which 23.1% had children under the age of 18 living in them. Of all households, 35.4% were married-couple households, 29.2% were households with a male householder and no spouse or partner present, and 30.8% were households with a female householder and no spouse or partner present. About 47.7% of all households were made up of individuals and 38.4% had someone living alone who was 65 years of age or older.
! Race !! Number !! Percent
|-
| White || 120 || 94.5%
|-
| Black or African American || 0 || 0.0%
|-
| American Indian and Alaska Native || 2 || 1.6%
|-
| Asian || 1 || 0.8%
|-
| Native Hawaiian and Other Pacific Islander || 0 || 0.0%
|-
| Some other race || 1 || 0.8%
|-
| Two or more races || 3 || 2.4%
|-
| Hispanic or Latino (of any race) || 2 || 1.6%
|}
2010 census
As of the census of 2010, there were 144 people, 80 households, and 37 families residing in the city. The population density was . There were 136 housing units at an average density of . The racial makeup of the city was 96.5% White, 0.7% Asian, and 2.8% from two or more races.
There were 80 households, of which 15.0% had children under the age of 18 living with them, 36.3% were married couples living together, 8.8% had a female householder with no husband present, 1.3% had a male householder with no wife present, and 53.8% were non-families. 46.3% of all households were made up of individuals, and 21.3% had someone living alone who was 65 years of age or older. The average household size was 1.80 and the average family size was 2.46.
The median age in the city was 52.3 years. 16% of residents were under the age of 18; 5.7% were between the ages of 18 and 24; 18.2% were from 25 to 44; 34.7% were from 45 to 64; and 25.7% were 65 years of age or older. The gender makeup of the city was 50.7% male and 49.3% female.
2000 census
At the 2000 census,