Ioannina (Greek: Ιωάννινα, Greek pronunciation: [io̞ˈɐ.ni.nɐ]), often called Yannena (Γιάννενα, Greek pronunciation: [ˈʝɐ.ne̞.nɐ]) within Greece, is the capital and largest city of Epirus, an administrative region in north-western Greece, with a population of 112,486 (in 2011). It lies at an elevation of approximately 500 metres (1,640 feet) above sea level, on the western shore of lake Pamvotis (Παμβώτις). It is located within the Ioannina municipality, and is the capital of Ioannina regional unit and the region of Epirus.