Comune in Lombardy, Italy Ferno Comune Comune di Ferno Ferno Santa Maria Location of Ferno Ferno Location of Ferno in Italy Show map of Italy Ferno Ferno (Lombardy) Show map of Lombardy Coordinates: 45°37′N 8°45′E﻿ / ﻿45.617°N 8.750°E﻿ / 45.617; 8.750Coordinates: 45°37′N 8°45′E﻿ / ﻿45.617°N 8.750°E﻿ / 45.617; 8.750 Country Italy Region Lombardy Province Province of Varese (VA) Frazioni San Macario Government • Mayor Filippo Gesualdi Area [1] • Total 8.5 km2 (3.3 sq mi) Elevation 211 m (692 ft) Population (December 2017)[2] • Total 6,858 • Density 810/km2 (2,100/sq mi) Demonym Fernesi Time zone UTC+1 (CET) • Summer (DST) UTC+2 (CEST) Postal code 21010 Dialing code 0331 Website Official website