Sumner is located in Spink County, South Dakota. Sumner has a 2025 population of 13 . Sumner is currently declining at a rate of 0% annually and its population has decreased by -7.14% since the most recent census, which recorded a population of 14 in 2020.
The average household income in Sumner is $252,300 with a poverty rate of 0%. The median age in Sumner is 60.5 years: 65.5 years for males, and 58.5 years for females. For every 100 females there are 50.0 males.
Data after 2023 is projected based on recent change
The racial composition of Sumner includes 100% White, and smaller percentages for and multiracial populations.
White (100%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 15 | 100% |
Married
Widowed
Divorced
Separated
Never Married
Sumner's average per capita income is $63,750. Household income levels show a median of $0. The poverty rate stands at 0%.
Name | Median | Mean |
|---|---|---|
| Households | - | $252,300 |
| Families | - | $252,300 |
| Married Families | - | - |
| Non Families | - | - |
Average Income
Median Household Income
Poverty Rate