Carter
- County:
- Tripp County
- County Seat:
- No
- Area (mi²):
- 26.273
- State:
- South Dakota
Carter is located in Tripp County, South Dakota. Carter has a 2025 population of 36 . Carter is currently growing at a rate of 2.86% annually and its population has increased by 5.88% since the most recent census, which recorded a population of 34 in 2020.
The median age in Carter is 26.3 years: 29.2 years for males, and 9.7 years for females. For every 100 females there are 112.0 males.