Sully County, SD
| 
            Sully County Population: 1,556 Population Density: 1.5 per square mile Water Area Percentage: 5.93% (63.46 square miles) Land Area Percentage: 94.07% (1,006.90 square miles) Total Area: 1,070.36 square miles Housing Units: 844 per square mile County Links Lakes In Sully County • Lake Oahe  | 
        
            
  | 
        
    
| 
             | 
    
| 
				Quick Links Lake Purdy News Lake Purdy Photos Lake Purdy Videos  | 
		

 Login
                            
