Banner township is located in Beadle County, South Dakota. Banner township has a 2026 population of 48. Banner 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 48 in 2020.
The median age in Banner township is 64.2 years: 67.1 years for males, and 61.5 years for females. For every 100 females there are 106.3 males.
Data after 2023 is projected based on recent change
Overall: 64.2 years
Female: 61.5 years
Male: 67.1 years
There are 33 adults, (14 of whom are seniors) in Banner township.
Female: 16 (48.5%)
Male: 17 (51.5%)
The racial composition of Banner township includes 100% White, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 33 | 100% |