(66%), 249 municipalities 3.6 million (66%), 228 municipalities 3.1 million (58%), 187 municipalities 4.3 million (79%), 330 municipalities Number of municipalities, residents and percentage compared to total residents in the province or the local area (as at 1 January 2019, source: Istat) in which Hera manages at least one energy service (distribution of gas, electricity or district heating), water service (aqueduct, sewage or purification) and waste management service (separate or non-separate waste collection, or sweeping).