West Virginia’s location in the U. Harrison County is west virginia county map pdf county in the U. As of the 2010 census, the population was 69,099.
The county seat is Clarksburg. The county was founded in 1784. Harrison County is part of the Clarksburg, WV Micropolitan Statistical Area.
Indigenous peoples lived in the area that would become Harrison County for thousands of years. The Oak Mounds outside Clarksburg were built by the Hopewell culture mound builders sometime between 1 and 1000 C. White trappers visited the area that is now Harrison County as early as the 1760s.