Population Density

Population density is calculated by dividing a region's population by its area, typically expressed as people per km². Among sovereign states, Monaco is generally cited as the densest and Mongolia as the least dense. Exact figures vary by source, depending on whether area counts land only or includes water and on the reference year of the population.

National averages can be misleading. Australia has a very low overall density, but most of its population is concentrated in coastal cities.

When density is your hint, sort it into two shapes: extremely high points to a city-state or a small island nation, extremely low to a large country with an arid interior or one at high latitude. Mid-range values overlap across many countries, so pair them with area or climate hints.