Marlar township is located in Jerauld County, South Dakota. Marlar township has a 2026 population of 20. Marlar township is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 20 in 2020.
The median age in Marlar township is 74 years: 0 years for males, and 0 years for females. For every 100 females there are 300.0 males.
Data after 2023 is projected based on recent change
Overall: 74 years
Female: 0 years
Male: 0 years
There are 8 adults, (4 of whom are seniors) in Marlar township.
Female: 2 (25%)
Male: 6 (75%)
The racial composition of Marlar township includes 100% White, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 8 | 100% |