Marlar
- County:
- Jerauld County
- County Seat:
- No
- Area (mi²):
- 35.467
- State:
- South Dakota
Marlar is located in Jerauld County, South Dakota. Marlar has a 2025 population of 20 . Marlar 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 is 74 years: 0 years for males, and 0 years for females. For every 100 females there are 300.0 males.