Vivian township is located in Lyman County, South Dakota. Vivian township has a 2026 population of 125. Vivian township is currently declining at a rate of 0% annually and its population has increased by 1.63% since the most recent census, which recorded a population of 123 in 2020.
The median household income in Vivian township is $101,250 with a poverty rate of 0%. The median age in Vivian township is 35.5 years: 53.8 years for males, and 12.4 years for females. For every 100 females there are 45.0 males.
Data after 2023 is projected based on recent change
Overall: 35.5 years
Female: 12.4 years
Male: 53.8 years
There are 89 adults, (7 of whom are seniors) in Vivian township.
Female: 109 (69%)
Male: 49 (31%)
The racial composition of Vivian township includes 71.52% White, 28.48% Native American, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 113 | 71.52% |
| Native American | 45 | 28.48% |
Vivian township 's average per capita income is $59,063. Household income levels show a median of $101,250. The poverty rate stands at 0%.
| Name | Median ↓ | Mean |
|---|---|---|
| Families | $101,563 | $116,569 |
| Married Families | $101,563 | - |
| Households | $101,250 | $112,919 |
| Non Families | - | - |
Average Income
Median Household Income
Poverty Rate