Lake City
- County:
- Marshall County
- County Seat:
- No
- Area (mi²):
- 0.219
- State:
- South Dakota
Lake City is a town located in Marshall County, South Dakota. Lake City has a 2026 population of 45. Lake City is currently growing at a rate of 4.65% annually and its population has increased by 2.27% since the most recent census, which recorded a population of 44 in 2020.
The median household income in Lake City is $41,563 with a poverty rate of 0%. The median age in Lake City is 65.7 years: 65.5 years for males, and 68 years for females. For every 100 females there are 233.3 males.