There are two aboriginal villages in Mongaguá: Aldeia Itaóca and Aguapéu, located in the Atlantic Mata reserve.

When the first Europeans arrived in the region in the 16th century, the Guaranis lived on the banks of the Mongaguá and Aguapeú rivers.

The company is currently an operator of cell phones, fixed lines, internet (fiber optics/4G) and television (satellite and cable).

[7] Raul Seixas, the "Father of Brazilian Rock", was known to spend large amounts of time in Bairro Pedreira in Mongaguá where for years he rented a small bungalo as a songwriting studio.

And since 2010, the Greek-Californian artist and musician Ithaka Darin Pappas has worked and resided in Mongaguá at his small art ranch called Recanto Akahti (or AkahtiLândia, Brazil).