Columbia township
- County:
- Brown County
- County Seat:
- No
- Area (mi²):
- 47.736
- State:
- South Dakota
Columbia township is located in Brown County, South Dakota. Columbia township has a 2025 population of 99. Columbia township is currently declining at a rate of -1.98% annually and its population has decreased by -5.71% since the most recent census, which recorded a population of 105 in 2020.
The median age in Columbia township is 52.3 years: 0 years for males, and 52.3 years for females.