The urbanized area around Corbin extends into Laurel County ; this area is not incorporated into the city limits due to a state law prohibiting cities from being in more than two counties. However, this area is served by some of the city's public services. As of the census , the city population was 7,, with 21, living in the " urban cluster " that includes Corbin and North Corbin. The first settlement in the Corbin area was known as Lynn Camp Station and the first post office was called Cummins for community founder Nelson Cummins. It was discovered in that both Cummins and Lynn Camp were already in use as names for Kentucky post offices and postmaster James Eaton was asked to select another name.