Benton
- County:
- McCook County
- County Seat:
- No
- Area (mi²):
- 35.162
- State:
- South Dakota
Benton is located in McCook County, South Dakota. Benton has a 2025 population of 98 . Benton is currently declining at a rate of -1.01% annually but its population has increased by 3.16% since the most recent census, which recorded a population of 95 in 2020.
The median age in Benton is 41.5 years: 41.6 years for males, and 41.4 years for females. For every 100 females there are 132.1 males.