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Allen County, KS
| Allen County Population: 14,385 Population Density: 28.6 per square mile Water Area Percentage: 0.43% (2.18 square miles) Land Area Percentage: 99.57% (503.01 square miles) Total Area: 505.18 square miles Housing Units: 6,449 per square mile County Links | 
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| Quick Links Clay County Lake News Clay County Lake Photos Clay County Lake Videos | 





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