At the 2001 census the municipality had a population of 27,132 inhabitants and a population density of 8,027.2 persons/km², making it the most densely populated comune in Italy outside the Province of Naples (although it was only seventh overall, behind Portici, Casavatore, San Giorgio a Cremano, Melito di Napoli, Naples, and Arzano).
The municipality is located in the north-eastern suburb of the city and borders with Casoria, Casavatore and Arzano.