There are 19 US Post Offices in Harlan County serving a total of 27,315 residents equating to 1,438 residents per post office. It's estimated that approximately 43,598 packages are handled across the 19 county post offices annually. Harlan County is a county located in the Commonwealth of Kentucky. As of the 2010 census, the population was 29,278. Its county seat is Harlan. The county was formed in 1819. With regard to the sale of alcohol, it is classified as a moist county\u2014a county in which alcohol sales are prohibited (a dry county), but containing a \"wet\" city, in this case Cumberland, where package alcohol sales are allowed. In the city of Harlan, restaurants seating 100+ may serve alcoholic beverages. The Commonwealth's highest natural point, Black Mountain (4,145 feet (1,263 m)), is in Harlan County."