Updated August 27, 2006
According to the Population Reference Bureau, these thirteen countries have the world's lowest population densities, in people per square mile. All have a population density of under 20 people per square mile.
1. Mongolia - 4 people per square mile
2. Namibia - 6
3. Australia - 7
4. Mauritania - 8
4. Botswana - 8
4. Canada - 8
4. Suriname - 8
4. Iceland - 8
9. Guyana - 9
9. Libya - 9
11. Gabon - 14
12. Kazakhstan - 15
13. Central African Republic - 18
