Terzigno is a comune (municipality) in the Province of Naples in the Italian region Campania, located about 20 km east of Naples. As of 31 December 2004, it had a population of 16,977 and an area of 23.5 km². The municipality of Terzigno contains the frazione (subdivision) Boccia al Mauro. Terzigno borders the following municipalities: Boscoreale, Boscotrecase, Ottaviano, Poggiomarino, San Giuseppe Vesuviano. Demographic evolution References ^ All demographics and other statistics: Italian statistical institute Istat.