Marshfield township is located in Perkins County, South Dakota. Marshfield township has a 2026 population of 38. Marshfield township is currently growing at a rate of 2.7% annually and its population has increased by 5.56% since the most recent census, which recorded a population of 36 in 2020.
The median age in Marshfield township is 61.8 years: 0 years for males, and 0 years for females. For every 100 females there are 83.3 males.
Data after 2023 is projected based on recent change
Overall: 61.8 years
Female: 0 years
Male: 0 years
There are 11 adults, (2 of whom are seniors) in Marshfield township.
Female: 6 (54.5%)
Male: 5 (45.5%)
The racial composition of Marshfield township includes 100% White, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 11 | 100% |