Barrett township is located in Perkins County, South Dakota. Barrett township has a 2026 population of 16. Barrett township 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 16 in 2020.
The median age in Barrett township is 44.5 years: 6.9 years for males, and 0 years for females. For every 100 females there are 180.0 males.
Data after 2023 is projected based on recent change
Overall: 44.5 years
Female: 0 years
Male: 6.9 years
There are 18 adults, (3 of whom are seniors) in Barrett township.
Female: 10 (35.7%)
Male: 18 (64.3%)
The racial composition of Barrett township includes 92.86% White, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 26 | 92.86% |
| Two or more races | 2 | 7.14% |