Ioannina, often called Yannena within Greece, is the capital and largest city of the Ioannina regional unit and of Epirus, an administrative region in north-western Greece. According to the 2011 census, the city population was 65,574, while the municipality had 112,486 inhabitants. Ten years later, the population of the city had seen a minor increase to 113,978 inhabitants. It lies at an elevation of approximately 500 m above sea level, on the western shore of Lake Pamvotis (Παμβώτις). Ioannina is located 410 km northwest of Athens, 260 km southwest of Thessaloniki and 80 km east of the port of Igoumenitsa on the Ionian Sea.