Regional units of Greece
Administrative division of Greece following the "Kallikratis" reform: each colour denotes a region, regional units are outlined in black, and municipalities in white The 74 regional units (Greek: περιφερειακές ενότητες, perifereiakés enóti̱tes, sing. περιφερειακή ενότητα, perifereiakí̱ enóti̱ta ) are administrative units of Greece. They are subdivisions of the country's 13 regions, further subdivided into municipalities. They were introduced as part of the "Kallikratis" administrative reform on 1 January 2011 [1] and are comparable in area and, in the mainland, coterminous with the pre-"Kallikratis" prefectures of Greece. Administrative Region Regional unit Prefecture it was created from Attica North Athens Athens (part) Attica West Athens Athens (part) Attica Central Athens Athens (part) Attica South Athens Athens (part) Attica East Attica East Attica Attica Piraeus Piraeus (part) Attica