
Portage township
- County:
- Brown County
- County Seat:
- No
- Area (mi²):
- 35.652
- State:
- South Dakota
Portage township is located in Brown County, South Dakota. Portage township has a 2025 population of 36. Portage township is currently declining at a rate of 0% annually and its population has decreased by -2.7% since the most recent census, which recorded a population of 37 in 2020.
The average household income in Portage township is -$1000.00 Mn with a poverty rate of 0%. The median age in Portage township is 0 years: 0 years for males, and 0 years for females.