Comune in Lombardy, Italy Pero Per (Lombard) Comune Comune di Pero Coat of arms Location of Pero Pero Location of Pero in Italy Show map of Italy Pero Pero (Lombardy) Show map of Lombardy Coordinates: 45°31′N 9°5′E﻿ / ﻿45.517°N 9.083°E﻿ / 45.517; 9.083Coordinates: 45°31′N 9°5′E﻿ / ﻿45.517°N 9.083°E﻿ / 45.517; 9.083 Country Italy Region Lombardy Metropolitan city Milan (MI) Frazioni Cerchiate, Cerchiarello Area [1] • Total 5.0 km2 (1.9 sq mi) Elevation 144 m (472 ft) Population (Dec. 2004)[2] • Total 10,378 • Density 2,100/km2 (5,400/sq mi) Demonym Peresi Time zone UTC+1 (CET) • Summer (DST) UTC+2 (CEST) Postal code 20016 Dialing code 02 Website Official website