Goodwin township
- County:
- Deuel County
- County Seat:
- No
- Area (mi²):
- 40.209
- State:
- South Dakota
Goodwin township is located in Deuel County, South Dakota. Goodwin township has a 2026 population of 196. Goodwin township is currently declining at a rate of 0% annually and its population has increased by 2.08% since the most recent census, which recorded a population of 192 in 2020.
The median age in Goodwin township is 33.8 years: 33.3 years for males, and 35.9 years for females. For every 100 females there are 133.3 males.