São João de Meriti is a Brazilian municipality in the state of Rio de Janeiro. Its historical name is São João do Rio Meriti. Its population was 472,906 inhabitants in 2020. It's located in the region of Baixada Fluminense, having 34.996 km².
The city is known as "Americas' Anthill", because its population density is one of the highest in the continent.
Wikipedia https://en.wikipedia.org/wiki/São_João_de_Meriti
Coordinates -22°48'15.748" N -43°22'20.685" E
