(66%), 263 municipalities 3.6 million (77%), 231 municipalities 3.3 million (70%), 187 municipalities 4.4 million (80%), 349 municipalities Number of municipalities, residents and percentage of total residents in the province or the local area (as at 1 January 2017, source: Istat) in which Hera manages at least one energy service (distribution of gas, electricity or district heating), water service (water systems, sewage or treatment) and waste management service (separated or nonseparated waste collection, or sweeping).