Lusaka is the capital and largest city of Zambia. It is one of the fastest-developing cities in southern Africa. Lusaka is in the southern part of the central plateau at an elevation of about 1,279 metres (4,196 ft). As of 2022, the city's population was approximately 2,204,059. Lusaka is the centre of both commerce and government in Zambia and connects to the country's four main highways heading north, south, east, and west. English is the official language of the city administration, while Bemba, Tonga and Chichewa are the commonly spoken street languages.