what county is millstone ky
Homefacts City Report. Millstone is located in Letcher County, KY. The population is 54, making Millstone the 8th largest city in Letcher County. There are 0 public schools in Millstone with an average Homefacts rating of NA. The total crime rate for Millstone is very low, and there are 0 registered sex offenders residing in the city.