are grouped into four districts which are not in themselves administrative divisions. Funa District Bandalungwa Bumbu Kalamu Kasa-Vubu Makala Ngiri-Ngiri Selembao Lukunga District Barumbu Gombe Kinshasa Kintambo Lingwala Mont Ngafula Ngaliema Mont Amba District Kisenso Lemba Limete Matete Ngaba Tshangu District Kimbanseke Maluku Masina Ndjili (N'Djili) Nsele (N'Sele) Climate Under the Köppen climate classification, Kinshasa has a tropical wet and dry climate (Aw). Its lengthy rainy season spans from October through May, with a relatively short dry season, between June and September. Kinshasa lies south of the equator, so its dry season begins around its winter solstice, which is in June. This is in contrast to African cities further north featuring this climate where the dry season typically begins around December. Kinshasa's dry season is slightly cooler than its wet season, though temperatures remain relatively constant throughout the year. Demographics An official census conducted in 1984 counted 2.6 million residents. Since then, all estimates are extrapolations. The estimates for 2005 fell in a range between 5.3 million and 7.3 million. In 2017, the most recent population estimate for the city, it has a population of 11,855,000. According to UN-Habitat, 390,000 people immigrate to Kinshasa annually, fleeing warfare and seeking economic opportunity. According to a projection (2016) the population of metropolitan Kinshasa will increase significantly, to 35 million by 2050, 58 million by 2075 and 83 million by 2100, making it one of the largest metropolitan areas in the world. Language The official language of the Democratic Republic of the Congo, of which Kinshasa is the capital, is French (See: Kinshasa French vocabulary). Kinshasa is the largest officially Francophone city in the world, albeit that the vast majority of people either cannot speak French, or struggle in speaking it. although Lingala is widely used as a spoken language. French is the language of street signs, posters, newspapers, government documents, schools; it dominates plays, television, and the press, and it is used in vertical relationships among people of different social classes. People of the same class, however, speak the Congolese languages (Kikongo, Lingala, Tshiluba or Swahili) among themselves. Government and politics The head of Kinshasa ville-province has the title of Gouverneur. Gentiny Ngobila Mbala has been governor since 2019. Each commune has its own Bourgmestre. Although political power in the DRC is fragmented, Kinshasa as the national capital represents the official center of sovereignty, and thus of access to international organizations and