Bossko township
- County:
- Roberts County
- County Seat:
- No
- Area (mi²):
- 36.016
- State:
- South Dakota
Bossko township is located in Roberts County, South Dakota. Bossko township has a 2026 population of 49. Bossko township is currently declining at a rate of 0% annually and its population has increased by 2.08% since the most recent census, which recorded a population of 48 in 2020.
The median age in Bossko township is 66.5 years: 66.2 years for males, and 0 years for females. For every 100 females there are 520.0 males.