Ioannina, often called Yannena within Greece, is the capital and largest city of the Ioannina regional unit and of Epirus, an administrative region in northwestern Greece. According to the 2021 census, the city population was 64,896 while the municipality had 113,978 inhabitants. It lies at an elevation of approximately 500 metres above sea level, on the western shore of Lake Pamvotis (Παμβώτις). Ioannina is located 410 km (255 mi) northwest of Athens, 260 kilometres southwest of Thessaloniki and 80 km east of the port of Igoumenitsa on the Ionian Sea.