Staranzano (Friulian and Bisiacco: Staranzan; ) is a comune (municipality) in the Regional decentralization entity of Gorizia in the Italian region of Friuli-Venezia Giulia, located about 30 km northwest of Trieste and about 15 km southwest of Gorizia. As of 31 December 2004, it had a population of 6,812 and an area of 18.7 km2. The municipality of Staranzano contains the frazioni (boroughs) of Alberoni, Bistrigna, Dobbia, Lido di Staranzano, Quarantia, Villaraspa, Le Coloschie, Bosco Grande, Bonifica del Broncolo and Punta Sdobba. Staranzano borders the following municipalities: Grado, Monfalcone, Ronchi dei Legionari, San Canzian d'Isonzo.

Demographic evolution