What is the population density of areas along Amazon River?

The population density of areas along the Amazon River varies significantly. The Amazon rainforest covers an area of approximately 5.5 million square kilometers (2.1 million square miles), and the human population of this region is estimated to be around 33 million people. This gives an average population density of around 6 people per square kilometer (16 people per square mile). However, the population density is not evenly distributed throughout the Amazon rainforest. Some areas, such as the cities of Manaus and Belem, have population densities of over 1,000 people per square kilometer (2,500 people per square mile), while other areas, such as the remote rainforest regions, have population densities of less than 1 person per square kilometer (2.5 people per square mile).