Greggio Comune Comune di Greggio Coat of arms Greggio Location of Greggio in Italy Coordinates: 45°27′N 8°23′E﻿ / ﻿45.450°N 8.383°E﻿ / 45.450; 8.383 Country Italy Region Piedmont Province Vercelli (VC) Government • Mayor Claudio Trada Area • Total 12.0 km2 (4.6 sq mi) Elevation 161 m (528 ft) Population (31 March 2009[1]) • Total 382 • Density 32/km2 (82/sq mi) Demonym(s) Greggesi Time zone CET (UTC+1) • Summer (DST) CEST (UTC+2) Postal code 13030 Dialing code 0161