Quarna Sotto is a comune (municipality) in the Province of Verbano-Cusio-Ossola in the Italian region Piedmont, located about 100 km northeast of Turin and about 15 km southwest of Verbania. As of 31 December 2004, it had a population of 432 and an area of 16.1 km².
Quarna Sotto borders the following municipalities: Nonio, Omegna, Quarna Sopra, Valstrona, Varallo Sesia.
Read more about Quarna Sotto: Demographic Evolution