Pennington County, SD
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            Pennington County Population: 88,565 Population Density: 31.9 per square mile Water Area Percentage: 0.29% (8.16 square miles) Land Area Percentage: 99.71% (2,776.15 square miles) Total Area: 2,784.31 square miles Housing Units: 37,249 per square mile County Links  | 
        
            
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				Quick Links Glen Elder Reservoir News Glen Elder Reservoir Photos Glen Elder Reservoir Videos  | 
		

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