Union township is located in McCook County, South Dakota. Union township has a 2026 population of 127. Union township is currently declining at a rate of 0% annually and its population has increased by 4.1% since the most recent census, which recorded a population of 122 in 2020.
The median household income in Union township is $89,792 with a poverty rate of 3.08%. The median age in Union township is 39.5 years: 29.2 years for males, and 48.8 years for females. For every 100 females there are 181.3 males.
Data after 2023 is projected based on recent change
Overall: 39.5 years
Female: 48.8 years
Male: 29.2 years
There are 92 adults, (27 of whom are seniors) in Union township.
Female: 48 (35.6%)
Male: 87 (64.4%)
The racial composition of Union township includes 96.3% White, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 130 | 96.3% |
| Two or more races | 5 | 3.7% |
Union township 's average per capita income is $73,000. Household income levels show a median of $89,792. The poverty rate stands at 3.08%.
| Name | Median ↓ | Mean |
|---|---|---|
| Households | $89,792 | $117,409 |
| Families | $89,583 | $110,958 |
| Married Families | $89,583 | - |
| Non Families | - | - |
Average Income
Median Household Income
Poverty Rate