Marvin is a town located in Grant County, South Dakota. Marvin has a 2026 population of 19. Marvin 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 19 in 2020.
The median household income in Marvin is $43,125 with a poverty rate of 15.79%. The median age in Marvin is 60.3 years: 60.5 years for males, and 58.5 years for females. For every 100 females there are 280.0 males.
Data after 2023 is projected based on recent change
Overall: 60.3 years
Female: 58.5 years
Male: 60.5 years
There are 17 adults, (7 of whom are seniors) in Marvin.
Female: 5 (26.3%)
Male: 14 (73.7%)
The racial composition of Marvin includes 94.74% White, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 18 | 94.74% |
| Two or more races | 1 | 5.26% |
Marvin 's average per capita income is $0. Household income levels show a median of $43,125. The poverty rate stands at 15.79%.
| Name | Median ↓ | Mean |
|---|---|---|
| Families | $48,125 | $41,120 |
| Households | $43,125 | $36,867 |
| Married Families | - | - |
| Non Families | - | $31,550 |
Average Income
Median Household Income
Poverty Rate