Waldro township is located in Brule County, South Dakota. Waldro township has a 2026 population of 71. Waldro township is currently declining at a rate of -1.39% annually and its population has decreased by -1.39% since the most recent census, which recorded a population of 72 in 2020.
The median age in Waldro township is 42.2 years: 16.8 years for males, and 42.8 years for females. For every 100 females there are 584.6 males.
Data after 2023 is projected based on recent change
Overall: 42.2 years
Female: 42.8 years
Male: 16.8 years
There are 46 adults, (12 of whom are seniors) in Waldro township.
Female: 13 (14.6%)
Male: 76 (85.4%)
The racial composition of Waldro township includes 100% White, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 89 | 100% |