Carolina County is a term used to refer to counties in the U.S. states of North Carolina and South Carolina. One such county is Buncombe, located in western North Carolina. It is the most populous county in the state, with a population of over 250, 000 people. Buncombe County was established in 1791 and is named after Revolutionary War hero Colonel Edward Buncombe. The county seat is Asheville, which is also the largest city in the county.