Afragola is a city and comune in the Metropolitan City of Naples, in Italy. It is one of the 100 largest Italian cities. The communal territory, measuring 18 square kilometres, borders the municipalities of Acerra, Casalnuovo di Napoli, Caivano, Cardito and Casoria, forming a single metropolitan area of around 100,000 inhabitants. The comune of Afragola is one of the most densely populated of the country.