Chestnut Hill is an unincorporated town adjacent to the City of Weirton in Hancock County, West Virginia. In Law, an unincorporated area is a region of land that is not a part of any Municipality. Weirton is a city located in the Northern Panhandle of West Virginia. Hancock County is a County located in the US state of West Virginia. West Virginia ( is a state in the Appalachian Upland South, and Mid-Atlantic regions of the United States, bordered by