
Brookfield township
- County:
- McCook County
- County Seat:
- No
- Area (mi²):
- 36.449
- State:
- South Dakota
Brookfield township is located in McCook County, South Dakota. Brookfield township has a 2025 population of 138. Brookfield township is currently growing at a rate of 1.47% annually and its population has increased by 8.66% since the most recent census, which recorded a population of 127 in 2020.
The average household income in Brookfield township is $83,517 with a poverty rate of 26.13%. The median age in Brookfield township is 61.7 years: 64 years for males, and 60.8 years for females.