Porto Alegre is the capital and largest city of the Brazilian state of Rio Grande do Sul.
It has a population of 1,420,667 inhabitants and 4,276,475 inhabitants for its metropolitan area.
The city is located at the junction of five rivers, among which is the Guaíba River, a continuation of the Jacuí River shortly before its mouth in the Patos Lagoon.
See more about the location of Porto Alegre