Around 20 million persons live in the Amazon region; its demographic density is 4,0 inhabitants for km ²;

 62% of the population live in the urban zone and 38% in the rural area;

 In the Amazon State, there are 64 ethnic groups;120 thousand natives live in villages and around 50 thousand natives out of them (only in Manaus and surroundings 30.000 natives live);

 The average time spent in a day by the caboclo (person who lives in a rural area) is shared in 3,2 hours for agriculture and 5,1 for extractive activities: hunting, fishing, harvest, etc.);

 The most ancient potteries found in the Amazon region date from 7.000 to 8.000 years ago;

 The rural population has the biggest absorption of animal protein (fish) of the world: an average of 140 g/person / day.