 The municipality is located in the Lugano district, north of the Magliasina delta.It consists of the villages of Magliaso, below the church and castle, and Castellaccio, on the lake shore.The blazon of the municipal coat of arms is "Quartered or in first and fourth two mullets of the same on an orb azure with a cross sable and in second and third also or a lion rampant sable scarfed azure."