Clayton County, IA
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            Clayton County Population: 18,678 Population Density: 24.0 per square mile Water Area Percentage: 1.77% (14.00 square miles) Land Area Percentage: 98.23% (778.81 square miles) Total Area: 792.81 square miles Housing Units: 8,619 per square mile County Links  | 
        
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				Quick Links Sandy River Reservoir News Sandy River Reservoir Photos Sandy River Reservoir Videos  | 
		

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