
Webster
- County:
- Day County
- County Seat:
- No
- Area (mi²):
- 1.622
- State:
- South Dakota
Webster is a city located in Day County, South Dakota. Webster has a 2025 population of 1,661. Webster is currently declining at a rate of -0.78% annually and its population has decreased by -3.71% since the most recent census, which recorded a population of 1,725 in 2020.
The average household income in Webster is $79,255 with a poverty rate of 15.12%. The median age in Webster is 42.7 years: 37.7 years for males, and 50 years for females.