Big Stone City
- County:
- Grant County
- County Seat:
- No
- Area (mi²):
- 1.198
- State:
- South Dakota
Big Stone City is a city located in Grant County, South Dakota. Big Stone City has a 2026 population of 413. Big Stone City is currently growing at a rate of 0.49% annually and its population has increased by 0.73% since the most recent census, which recorded a population of 410 in 2020.