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Brown County, SD
| Brown County Population: 35,460 Population Density: 20.7 per square mile Water Area Percentage: 1.05% (18.14 square miles) Land Area Percentage: 98.95% (1,713.07 square miles) Total Area: 1,731.21 square miles Housing Units: 15,861 per square mile County Links | 
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| Quick Links Fort Patrick Henry Reservoir News Fort Patrick Henry Reservoir Photos Fort Patrick Henry Reservoir Videos | 





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