Overcrowding is defined here as when there are more than two people for each room in the house. The populations of richer territories experience less overcrowding, than those in poorer territories. Living in large groups is also connected to social and cultural norms. In India 77% of the population live in conditions that are considered to be overcrowded. Large proportions of the populations of other Southern Asian territories also live in overcrowded conditions: the Pakistan rate is 72%; Bangladesh is 61%; and Nepal is 48%.
Australia, New Zealand, Japan, Western Europe and Canada are barely visible on the map because of low levels of overcrowding.