In 2015 the Population Density of Australia has risen to 3.2 people per Sq km.
In 2010 the Population Density of Australia was 2.8 per Sq km.
Population Densities for the main Australian Capitals and each Australian State and Territory are:
Brisbane with a population of 2,308,700 in an area of 15,826 Sq Km, has a density of 145 people per sq Km
Queensland with a population of 4,827,000 in an area of 1,730,620 Sq Km, has a density of 2.8 people per sq Km
Perth with a population of 2,039,200 in an area of 6,418 Sq Km, has a density of 318 people per sq Km
Western Australia with a population of 2,613,700 in an area of 2,529,875 Sq Km, has a density of 1.0 people per sq Km
Darwin with a population of 142,300 in an area of 3,164 Sq Km, has a density of 45 people per sq Km
Northern Territory with a population of 244,000 in an area of 1,349,129 Sq Km, has a density of 0.2 people per sq Km
Adelaide with a population of 1,316,779 in an area of 3,258 Sq Km, has a density of 404 people per sq Km
South Australia with a population of 1,706,500 in an area of 983,482 Sq Km, has a density of 1.7 people per sq Km
Canberra with a population of 381,488 in an area of 814 Sq Km, has a density of 469 people per sq Km
ACT with a population of 395,200 in an area of 2,280 Sq Km, has a density of 173 people per sq Km
Sydney with a population of 4,921,000 in an area of 12,368 Sq Km, has a density of 398 people per sq Km
New South Wales with a population of 7,704,300 in an area of 800,642 Sq Km, has a density of 9.6 people per sq Km
Melbourne with a population of 4,529,500 in an area of 9,990 Sq Km, has a density of 453 people per sq Km
Victoria with a population of 6,039,100 in an area of 227,420 Sq Km, has a density of 26.5 people per sq Km
Hobart with a population of 221,000 in an area of 1,695 Sq Km, has a density of 130 people per sq Km
Tasmania with a population of 518,500 in an area of 67,031 Sq Km, has a density of 7.7 people per sq Km
These figures are based on reasonable estimates for 2015, and are for specific areas.
Certain City figures may appear unusual, unless looked at from the perspective of the specific area, examples of this are:
Sydney, with a population of 4,921,000 in an area of 12,368 Sq Km, has a density of 398 people per sq Km
however, there is a different figure for:
City of Sydney, which has a population of 205,339 in an area of 25 Sq Km, has a density of 8,214 people per sq Km
Brisbane is another example of this:
Brisbane with a population of 2,308,700 in an area of 15,826 Sq Km, has a density of 145 people per sq Km
City of Brisbane with a population of 1,162,186 in an area of 1,367 Sq Km, has a density of 850 people per sq Km