Shelby township
- County:
- Brown County
- County Seat:
- No
- Area (mi²):
- 48.845
- State:
- South Dakota
Shelby township is located in Brown County, South Dakota. Shelby township has a 2026 population of 80. Shelby township is currently declining at a rate of 0% annually and its population has decreased by -2.44% since the most recent census, which recorded a population of 82 in 2020.
The median age in Shelby township is 27.6 years: 62.3 years for males, and 27.5 years for females. For every 100 females there are 76.0 males.