
Mansfield
- County:
- Brown County
- County Seat:
- No
- Area (mi²):
- 2.411
- State:
- South Dakota
Mansfield is a CDP located in Brown County, South Dakota. Mansfield has a 2025 population of 54. Mansfield is currently growing at a rate of 8% annually but its population has decreased by -40.66% since the most recent census, which recorded a population of 91 in 2020.
The average household income in Mansfield is $82,346 with a poverty rate of 0%. The median age in Mansfield is 42.7 years: 49.4 years for males, and 42.2 years for females.