Mayotte (Mayotte, ; Shimaore: Maore, ; Mahori) is an overseas department and region of France officially named the Department of Mayotte (French: Département de Mayotte). It consists of a main island, Grande-Terre (or Maore), a smaller island, Petite-Terre (or Pamanzi), and several islets around these two. The archipelago is located in the northern Mozambique Channel in the Indian Ocean off the coast of Southeast Africa, between northwestern Madagascar and northeastern Mozambique. The department status of Mayotte is recent and the region remains, by a significant margin, the poorest in France. Mayotte is nevertheless much more prosperous than the other countries of the Mozambique Channel, making it a major destination for illegal immigration.
Mayotte's area is 374 km2 and, with its 256,518 people at the 2017 census, is very densely populated at 686 per km 2 (1,777 per sq mi). The biggest city and prefecture is Mamoudzou on Grande-Terre. However, the Dzaoudzi–Pamandzi International Airport is located on the neighbouring island of Petite-Terre. The territory is geographically part of the Comoro Islands. The territory is also known as Maore, the native name of its main island, especially by advocates of its inclusion in the Union of the Comoros.