São Caetano de Odivelas is a municipality in the state of Pará, in the Northern region of Brazil. It is one of the many municipalities that make up this large Amazonian state, which occupies a substantial portion of northern Brazil.
The municipality is situated in the coastal and estuarine zone of Pará, an area shaped by the rivers and tidal waters that characterize the state's northern littoral. Like other municipalities in the region, it forms part of Pará's local administrative structure within the Northern region of the country.
Beyond its status as a municipality in Pará, its location within the state's coastal-estuarine setting is its most defining geographic characteristic. The area lies within the broader Amazonian environment that dominates northern Brazil.