Carthage is located in Miner County, South Dakota. Carthage has a 2025 population of 21 . Carthage is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 21 in 2020.
The median age in Carthage is 53.7 years: 0 years for males, and 0 years for females. For every 100 females there are 55.0 males.
Data after 2023 is projected based on recent change
The racial composition of Carthage includes 61.29% White, 38.71% Native American, and smaller percentages for and multiracial populations.
White (61.29%)
Native American (38.71%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 38 | 61.29% |
| Native American | 24 | 38.71% |
Married
Widowed
Divorced
Separated
Never Married