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is a county located in the U.S. state of Kentucky. It was formed in 1815. The population estimate for 2008 is 94,418. It is included in the Owensboro, Kentucky Metropolitan Statistical Area. Its county seat is Owensboro. The county is named for Colonel Joseph Hamilton Daviess, the U.S. Attorney who prosecuted Aaron Burr.
Daviess County is part of the Western Coal Fields region of Kentucky. According to the U.S. Census Bureau, the county has a total area of , of which is land and is water.