Lake County, South Dakota
Lake County, South Dakota | |
|---|---|
Lake County Courthouse | |
Location within the U.S. state of South Dakota | |
| Coordinates: 44°01′N 97°07′W / 44.02°N 97.12°W | |
| Country | United States |
| State | South Dakota |
| Founded | 1873 |
| Seat | Madison |
| Largest city | Madison |
| Area | |
• Total | 575 sq mi (1,490 km2) |
| • Land | 563 sq mi (1,460 km2) |
| • Water | 12 sq mi (31 km2) 2.1% |
| Population (2020) | |
• Total | 11,059 |
• Estimate (2024) | 11,006 |
| • Density | 19.6/sq mi (7.58/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | At-large |
| Website | www |
Lake County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 11,059. Its county seat is Madison. The county was formed in 1873.