Aberdeen township
- County:
- Brown County
- County Seat:
- No
- Area (mi²):
- 37.974
- State:
- South Dakota
Aberdeen township is located in Brown County, South Dakota. Aberdeen township has a 2026 population of 881. Aberdeen township is currently declining at a rate of -0.11% annually and its population has decreased by -2.22% since the most recent census, which recorded a population of 901 in 2020.
The median household income in Aberdeen township is $96,667 with a poverty rate of 18.98%. The median age in Aberdeen township is 59.1 years: 59.2 years for males, and 59 years for females. For every 100 females there are 90.3 males.