Turkey Valley township
- County:
- Yankton County
- County Seat:
- No
- Area (mi²):
- 35.75
- State:
- South Dakota
Turkey Valley township is located in Yankton County, South Dakota. Turkey Valley township has a 2026 population of 165. Turkey Valley township is currently declining at a rate of -1.2% annually and its population has decreased by -0.6% since the most recent census, which recorded a population of 166 in 2020.
The median household income in Turkey Valley township is $122,679 with a poverty rate of 3.15%. The median age in Turkey Valley township is 44.5 years: 41.8 years for males, and 44.5 years for females. For every 100 females there are 76.4 males.