Machine translation of the Portuguese Wikipedia article (November 2026 version).
Japeri is a municipality in the Baixada Fluminense, in the Metropolitan Region of Rio de Janeiro, in the state of Rio de Janeiro, Brazil. It is located at 22°38'35" south latitude and 43°39'12" west longitude, at an altitude of 30 meters. According to the 2022 census of the Brazilian Institute of Geography and Statistics (IBGE), its population was 96,289 inhabitants, and in 2021 the municipality had the lowest GDP per capita in the State of Rio de Janeiro.
It covers an area of 82.954 km², bordered by the municipalities of Paracambi, Seropédica, Queimados, Miguel Pereira and Nova Iguaçu. Watered by the Guandu, Santana, Rio dos Poços, Rio d'Ouro, Santo Antônio, Ribeirão das Lages and São Pedro rivers, it is crossed by the Japeri Branch and the Paracambi Branch of Supervia, by the Central Line and the Auxiliary Line of the Central Brazil Railway, by the RJ-125 or Ary Schiavo Highway (named as such from February 9, 1993, under Law 2,069), and also by the Metropolitan Arc.
It became independent from Nova Iguaçu in 1991.
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