Charleston is the capital and most populous city of the U.S. state of West Virginia and the seat of Kanawha County. It is at the confluence of the Elk and Kanawha rivers. The population was 48,864 at the 2020 census. According to 2023 census estimates, the city has a population of 46,838. The Charleston metropolitan area had 203,164 residents in 2023. It is the least populous state capital in the United States to be the most populous city in a state.