Malawi, officially the Republic of Malawi and formerly known as Nyasaland, is a landlocked country in Southeastern Africa. It is bordered by Zambia to the west, Tanzania to the north and northeast, and Mozambique to the east, south, and southwest. Malawi spans over 118,484 km2 (45,747 sq mi) and has an estimated population of 21,240,689. Malawi's capital and largest city is Lilongwe. Its second-largest is Blantyre, its third-largest is Mzuzu, and its fourth-largest is Zomba, the former capital.