Corbin is a home rule-class city in Whitley and Knox counties in the southeastern portion of the U.S. state of Kentucky. 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 2010 census, the city population was 7,304, with 21,132 living in the "urban cluster" that includes Corbin and North Corbin.