Flandreau township
- County:
- Moody County
- County Seat:
- No
- Area (mi²):
- 34.513
- State:
- South Dakota
Flandreau township is located in Moody County, South Dakota. Flandreau township has a 2026 population of 380. Flandreau township is currently growing at a rate of 1.33% annually and its population has increased by 3.26% since the most recent census, which recorded a population of 368 in 2020.
The median household income in Flandreau township is $177,520 with a poverty rate of 4.27%. The median age in Flandreau township is 54.5 years: 54.6 years for males, and 48.3 years for females. For every 100 females there are 141.1 males.