Ronago is a comune (municipality) in the Province of Como in the Italian region Lombardy, located about 45 km northwest of Milan and about 8 km west of Como, on the border with Switzerland. As of 31 December 2004, it had a population of 1,648 and an area of 2.1 km2.
Ronago borders the following municipalities: Chiasso (Switzerland), Drezzo, Novazzano (Switzerland), Uggiate-Trevano.
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