Brown County | |
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Coordinates: 45°36′N 98°21′W / 45.6°N 98.35°W | |
Country | United States |
State | South Dakota |
Founded | July 6, 1881[1] |
Seat | Aberdeen |
Largest city | Aberdeen |
Area | |
• Total | 1,731 sq mi (4,480 km2) |
• Land | 1,713 sq mi (4,440 km2) |
• Water | 18 sq mi (50 km2) 1.0% |
Population (2020) | |
• Total | 38,301 |
• Estimate (2023) | 37,733 |
• Density | 22/sq mi (8.5/km2) |
Time zone | UTC−6 (Central) |
• Summer (DST) | UTC−5 (CDT) |
Congressional district | At-large |
Website | www |
Brown County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 38,301,[2] making it the fourth most populous county in South Dakota. Its county seat is Aberdeen.[3] The county is named for Alfred Brown, of Hutchinson County, South Dakota, a Dakota Territory legislator in 1879.[1][4]
Brown County is part of the Aberdeen, SD Micropolitan Statistical Area.