North Brazil (comprising the states of Acre, Amapá, Amazonas, Pará, Rondônia, Roraima and Tocantins)
- Density of Population: 5.3 inhabitants per square kilometer (2021 estimate)
South Brazil (comprising the states of Paraná, Rio Grande do Sul and Santa Catarina)
- Density of Population: 48.3 inhabitants per square kilometer (2021 estimate)
The difference in population density between the north and south is primarily due to historical, geographical, and economic factors. The North region, which covers a vast area of the Amazon rainforest, has been historically less populated due to its challenging terrain, dense vegetation, and remoteness.
On the other hand, the South region, with its more temperate climate and fertile soil, has attracted more significant settlement and economic development, leading to a higher density of population.