
Rainbow township
- County:
- Perkins County
- County Seat:
- No
- Area (mi²):
- 35.416
- State:
- South Dakota
Rainbow township is located in Perkins County, South Dakota. Rainbow township has a 2025 population of 23. Rainbow township is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 23 in 2020.
The average household income in Rainbow township is $259,667 with a poverty rate of 24.32%. The median age in Rainbow township is 35.5 years: 31 years for males, and 36.5 years for females.