
Sisseton township
- County:
- Roberts County
- County Seat:
- No
- Area (mi²):
- 34.973
- State:
- South Dakota
Sisseton township is located in Roberts County, South Dakota. Sisseton township has a 2025 population of 74. Sisseton township is currently growing at a rate of 1.37% annually and its population has increased by 7.25% since the most recent census, which recorded a population of 69 in 2020.
The average household income in Sisseton township is $87,124 with a poverty rate of 0%. The median age in Sisseton township is 30.9 years: 16.7 years for males, and 55.3 years for females.