Barrett township is located in Beadle County, South Dakota. Barrett township has a 2026 population of 107. Barrett township is currently growing at a rate of 0.94% annually and its population has increased by 1.9% since the most recent census, which recorded a population of 105 in 2020.
The median age in Barrett township is 35.2 years: 33.3 years for males, and 72.2 years for females. For every 100 females there are 108.3 males.
Data after 2023 is projected based on recent change
Overall: 35.2 years
Female: 72.2 years
Male: 33.3 years
There are 61 adults, (32 of whom are seniors) in Barrett township.
Female: 48 (48%)
Male: 52 (52%)
The racial composition of Barrett township includes 100% White, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 100 | 100% |