Sioux County, IA
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            Sioux County Population: 31,589 Population Density: 41.1 per square mile Water Area Percentage: 0.09% (0.70 square miles) Land Area Percentage: 99.91% (767.88 square miles) Total Area: 768.58 square miles Housing Units: 11,260 per square mile County Links  | 
        
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