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Plymouth County, IA
| Plymouth County Population: 24,849 Population Density: 28.8 per square mile Water Area Percentage: 0.05% (0.39 square miles) Land Area Percentage: 99.95% (863.56 square miles) Total Area: 863.96 square miles Housing Units: 9,880 per square mile County Links | 
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| Quick Links Woodruff Creek Reservoir News Woodruff Creek Reservoir Photos Woodruff Creek Reservoir Videos | 





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