Considering Russia has the ninth highest population in the world, it is the area on this map with the largest gap between its population ranking and its population density ranking. India and China ...

Foreign aid covered 80 percent of Niger's needs during this year's food crisis, Nigerien officials say, but the United Nations has warned that the country must rein in its population growth to ...

It is home to 710,000 people in an area of just over 30 square kilometers. Other small urban regions, like Monaco, Singapore and Vatican City, also ranked highly in population density.