Wentworth
- County:
- Lake County
- County Seat:
- No
- Area (mi²):
- 0.254
- State:
- South Dakota
Wentworth is a village located in Lake County, South Dakota. Wentworth has a 2026 population of 169. Wentworth is currently declining at a rate of -2.31% annually and its population has decreased by -5.59% since the most recent census, which recorded a population of 179 in 2020.
The median household income in Wentworth is $62,188 with a poverty rate of 13.77%. The median age in Wentworth is 45.5 years: 51.6 years for males, and 41.3 years for females. For every 100 females there are 109.1 males.