At the same reform, the municipality Syros-Ermoupoli was created out of the 3 former municipalities: Ermoupoli Ano Syros Poseidonia The municipality also includes the uninhabited island Gyaros and several other islets.
Na mesma reforma, o municipio Siros-Ermoupoli foi creado a partir dos 3 municipios anteriores: Ermoupoli Ano Siros Poseidonia O municipio tamén inclúe a illa deshabitada Giaros e varios outros illotes.