Machine translation of the Portuguese Wikipedia article (November 2026 version).
Nova Iguaçu is a Brazilian municipality in the state of Rio de Janeiro, in the Southeast Region of the country. Located in the Baixada Fluminense, within the Metropolitan Region of Rio de Janeiro, it holds the title of “Capital of the Baixada” due to the various provinces, parishes and districts that over the years sought a political division into municipalities. Its estimated population in 2026 was 843,367 inhabitants, making it the fourth most populous municipality in the state and the 24th most populous in the country.
It is the oldest city in the Baixada Fluminense and is considered the “Mother City” of other cities in the region. Registered in 1719, the parish of Nossa Senhora da Piedade de Iguaçu, also called Nossa Senhora da Piedade do Caminho Velho, later Iguaçu Velho, gave rise to all the cities that make up the Baixada Fluminense; together with Niterói, Magé and Itaguaí, these are the oldest in the Metropolitan Region of Rio de Janeiro. It has one of the largest commercial and financial centers in the Baixada Fluminense. There are large, modern complexes of high-standard commercial and residential buildings, which generate heavy road traffic on the highways, air traffic through the Nova Iguaçu Aero Club, which few small aircraft use today, and also traffic through the heliport.
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