Machine translation of the Portuguese Wikipedia article (November 2026 version).
São Gonçalo is a Brazilian municipality in the state of Rio de Janeiro, in the Southeast Region of the country. It is located in the Leste Fluminense, in the Metropolitan Region of Rio de Janeiro, 25 km from the state capital, bordering the municipalities of Niterói, Maricá and Itaboraí by land, and bordering the capital, Rio de Janeiro, by sea across Guanabara Bay.
According to the IBGE estimate for 2024, its population is 960,652 inhabitants, making it the second most populous municipality in the state, behind only the state capital, the most populous municipality in the Leste Fluminense, and the 17th most populous in the country. It is also considered the 3rd most populous non-capital municipality in the country, the 6th most populous city in the Southeast Region and the 55th most populous in the Americas. It lies at 22º49'37" south latitude and 43º03'14" west longitude, at an altitude of nineteen metres. Its current mayor is Capitão Nelson.
With Rodo and Alcântara as two of the main centres of the Rio de Janeiro metropolis, São Gonçalo not only supplies labour to the cities of Niterói and Rio de Janeiro, but also plays an important role as a magnet for the region, absorbing, together with Niterói, labour from all seven municipalities of the Leste Metropolitano; Niterói and São Gonçalo are, in this way, regional hubs of this portion of the metropolis.
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