|  | 
Union County, SD
| Union County Population: 12,584 Population Density: 27.3 per square mile Water Area Percentage: 1.43% (6.70 square miles) Land Area Percentage: 98.57% (460.38 square miles) Total Area: 467.08 square miles Housing Units: 5,345 per square mile County Links | 
 | 
|  | 
| Quick Links Lunker Lake News Lunker Lake Photos Lunker Lake Videos | 





 Login
 Login
                             Home
Home

