
White River
- County:
- Mellette County
- County Seat:
- No
- Area (mi²):
- 0.521
- State:
- South Dakota
White River is a city located in Mellette County, South Dakota. White River has a 2025 population of 506. White River is currently declining at a rate of -1.17% annually and its population has decreased by -5.95% since the most recent census, which recorded a population of 538 in 2020.
The average household income in White River is $72,881 with a poverty rate of 31.41%. The median age in White River is 27.9 years: 22.5 years for males, and 37.3 years for females.