What is the population density of Western Australia?

The population density of a region is calculated by dividing the total population by the total land area. In the case of Western Australia, it is one of the largest states in Australia but has a relatively low population compared to its size, leading to a low population density figure.

The correct figure reflects the vast, sparsely populated areas in the region, particularly in the interior and northern parts where most of the land is rural or uninhabited. The population is concentrated in urban areas like Perth, which is located in the southwestern part of the state. This significant disparity between population distribution and land area is what contributes to the very low population density, making the selected answer accurate.

This low density is a result of environmental factors such as the arid climate, challenging geography, and the presence of large national parks and reserves, which limits urban development in many areas. While other figures suggest slightly higher densities, considering the vast geography and population distribution, the figure of 0.1 people per square kilometer accurately represents the demographic reality of Western Australia.