The Borough of Quarryville is a small part of what is considered the “Quarryville Area”. The Quarryville region is defined by the area that is served by the Quarryville Post Office which includes areas outside of the Borough’s political boundary. The post office itself is located in the Borough of Quarryville. Quarryville’s zip code, 17566, includes partial areas of surrounding townships. Portions of Eden, East Drumore, Bart, Little Britain, Fulton, Colerain and Providence Townships are served by the 17566 zip code.