Greater Rio de Janeiro


Greater Rio de Janeiro, officially the Rio de Janeiro Metropolitan Region is a large metropolitan area located in Rio de Janeiro state in Brazil, the second largest in Brazil and third largest in South America. It consists of 22 municipalities, including the state capital, Rio de Janeiro.
The metropolitan area of Rio de Janeiro is known as a historical, cultural and economic centre of Brazil, with a total population of 13 million inhabitants. The region was first officially defined on July 1, 1974, less than 1 year before the fusion of Guanabara into Rio de Janeiro. Several municipalities show a high level of conurbation, with Rio de Janeiro–Baixada Fluminense and Niterói–São Gonçalo being the most clear examples. It was changed several times to include or remove different cities in different moments of the history, in the years 1993, 2001, 2002, 2009, 2013 and 2018.
The water supply plans of the region are coordinated, and transportation in the area is heavily interconnected with urban intermunicipal buses to all municipalities in the area, trains over the capital to some Baixada Fluminense municipalities, ferry boats to some of the Guanabara Bay municipalities and major inter-city freeways such as the Rio–Niterói Bridge, Red Line, President Dutra freeway and the Niterói-Manilha freeway. Most transportation methods are integrated with the capital inner-transportation system of buses, trains, metro, freeways and expressways.

Cities by Population (2018)

1,000,000+
400,000 – 999,999
100,000 – 399,999
0 - 100,000
The 22 municipalities of the area are:
MunicipalityArea Population Population Population Population density 2018
Belford Roxo
Cachoeiras de Macacu
Duque de Caxias
Guapimirim
Itaboraí
Itaguaí
Japeri
Magé
Maricá
Mesquitano data
Nilópolis
Niterói
Nova Iguaçu
Paracambi
Petrópolis
Queimados
Rio Bonito
Rio de Janeiro
São Gonçalo
São João de Meriti
Seropédica
Tanguá
Metropolitan Rio Janeiro''''