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Polk County, NE
| Polk County Population: 5,639 Population Density: 12.8 per square mile Water Area Percentage: 0.43% (1.88 square miles) Land Area Percentage: 99.57% (438.84 square miles) Total Area: 440.72 square miles Housing Units: 2,717 per square mile County Links | 
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| Quick Links Felsenthal Lock and Dam News Felsenthal Lock and Dam Photos Felsenthal Lock and Dam Videos | 





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