Washington township is located in Douglas County, South Dakota. Washington township has a 2026 population of 127. Washington township is currently declining at a rate of 0% annually and its population has increased by 1.6% since the most recent census, which recorded a population of 125 in 2020.
The median household income in Washington township is $100,625 with a poverty rate of 0%. The median age in Washington township is 54.2 years: 54.7 years for males, and 53.6 years for females. For every 100 females there are 102.8 males.
Data after 2023 is projected based on recent change
Overall: 54.2 years
Female: 53.6 years
Male: 54.7 years
There are 61 adults, (8 of whom are seniors) in Washington township.
Female: 36 (49.3%)
Male: 37 (50.7%)
The racial composition of Washington township includes 100% White, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 73 | 100% |
Washington township 's average per capita income is $40,781. Household income levels show a median of $100,625. The poverty rate stands at 0%.
| Name | Median ↓ | Mean |
|---|---|---|
| Families | $101,406 | $122,800 |
| Married Families | $101,406 | - |
| Households | $100,625 | $108,753 |
| Non Families | - | - |
Average Income
Median Household Income
Poverty Rate