Kiahsville is an unicorporated town located in southern Wayne County, West Virginia, in the United States, . As of 2000 Census, the town's population is listed at 314. Its most recent population is listed at 322. It is a part of the Huntington- Ashland, WV-KY-OH, Metropolitan Statistical Area (MSA). As of the 2000 census, the MSA had a population of 288,649. Its sister town is nearby Cove Gap, WV.