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Jefferson County, OH
| Jefferson County Population: 73,894 Population Density: 180.4 per square mile Water Area Percentage: 0.31% (1.27 square miles) Land Area Percentage: 99.69% (409.61 square miles) Total Area: 410.87 square miles Housing Units: 33,291 per square mile County Links | 
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| Quick Links Kellart Lake News Kellart Lake Photos Kellart Lake Videos | 





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