East Flat Rock is an unincorporated area and census-designated place in Henderson County, North Carolina, United States. The population was 4,995 at the 2010 census, up from 4,151 at the 2000 census. It is part of the Asheville Metropolitan Statistical Area.East Flat Rock is located in southeastern Henderson County at 35°17′4″N 82°25′8″W / 35.28444°N 82.41889°W / 35.28444; -82.41889. It is bordered to the west by the village of Flat Rock and to the northwest by unincorporated Barker Heights.U.S. Route 176 is the main road through East Flat Rock, leading northwest 3 miles to Hendersonville, the county seat, and southeast 6 miles to Saluda. Interstate 26 runs along the eastern edge of the community, with access from Exit 53. I-26 leads north 27 miles to Asheville and southeast 42 miles to Spartanburg, South Carolina.According to the United States Census Bureau, the East Flat Rock CDP has a total area of 4.3 square miles, of which 0.01 square miles, or 0.27%, are water.