Blackey is an unincorporated community in Letcher County, Kentucky, in the United States. As of the 2010 census, the population was 120. It i…Blackey is an unincorporated community in Letcher County, Kentucky, in the United States. As of the 2010 census, the population was 120. It is located near the early settlement of Indian Bottom. Blackey is thought to have been named after Blackey Brown, one of its citizens.