
Australia has one of the lowest population densities in the world, with an average of 3.3 to 3.5 people per square kilometre as of June 2020. However, the country's population is highly urbanised, with 75% of its population residing on just 2.6% of the land mass. Melbourne, Sydney, and Adelaide are the cities with the highest population densities across the capital cities, with Melbourne's inner city having the highest density at 22,400 people per square kilometre. Outside of these cities, Fortitude Valley in Brisbane, Surfers Paradise in the Gold Coast, and Kingston in the ACT are among the regions with the highest population density.
| Characteristics | Values |
|---|---|
| Population Density | 3.5 people per square kilometre as of June 2024 |
| Most Densely Populated Cities | Melbourne, Sydney, Brisbane, Adelaide, Perth |
| Melbourne's Population Density | 521 people per sq. km or 17,500 people per sq km |
| Sydney's Population Density | 441 people per sq. km |
| Brisbane's Population Density | Fortitude Valley |
| Gold Coast | Surfers Paradise – North |
| Australian Capital Territory | 445.89 persons per square mile |
| State with Highest Population | New South Wales |
| City with Highest Growth Rate | Perth (3.1%) |
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What You'll Learn

Melbourne's inner city has Australia's highest population density
Australia is the sixth-largest nation in the world in terms of physical area, but its population density is incredibly low, with 3.3 people per square kilometre as of June 2020. In contrast, countries like India and the United States have much higher population densities, with 464 and 36 people per square kilometre, respectively. However, within Australia, there are areas of high population density, particularly in its biggest cities, such as Sydney and Melbourne.
Melbourne's inner city, with 22,400 people per square kilometre, boasts the highest population density in Australia. This is followed by Potts Point and Pyrmont in Sydney's inner city, with 16,700 and 16,500 people per square kilometre, respectively. Despite these numbers, these areas still have relatively low population densities compared to other major cities worldwide.
Melbourne has experienced significant population growth, with an increase of 142,600 people (2.7%) in the 2023-24 financial year, the largest increase among the capital cities. This growth has contributed to the high population density in Melbourne's inner city.
The high population density in Melbourne's inner city has various implications. One advantage is the concentration of job opportunities, with many companies having their headquarters in Melbourne. However, this may change with the increasing popularity of remote work. The dense population also impacts housing trends and urban sustainability. While population density does not seem to significantly affect house values, it does influence rental growth. Additionally, the trade-off between green spaces and apartment buildings becomes crucial in high-density areas.
Melbourne's inner city, with its high population density, presents a unique blend of advantages and drawbacks. While it offers a vibrant and bustling urban environment, it also faces challenges such as increased pollution and the need for sustainable city planning. Understanding these dynamics is essential for homebuyers, renters, and urban planners alike.
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Sydney's high population density
Sydney is Australia's most populous city, with a population of 5 million people as of the 2021 census. It is also the most populous city in Oceania. The city's population density is 441 people per square kilometre, which is relatively low compared to other global cities. However, when not counting national parks, Sydney's population density exceeds that of Los Angeles, with some suburbs like Potts Point, Chippendale, and Ultimo experiencing higher densities than others.
Sydney's low population density is partly due to its history. The city has a history of low land values, as it was surrounded by land considered unowned by its founders. Additionally, successive governments have been willing to release new land on the city's outskirts for development. This has resulted in Sydney having a low-density self-image.
Despite its overall low population density, Sydney's inner-city precincts have a much higher density. Potts Point and Pyrmont, both in Sydney's inner city, have Australia's second and third-highest population densities, with 16,700 and 16,500 people per square kilometre, respectively. These numbers are still relatively low compared to other global cities.
Sydney's population density has implications for housing trends and urban sustainability. The relationship between population density and rental growth is weak, with areas of high population density showing slightly stronger rental appreciation for units but weaker growth for houses over the past decade. Sydney's multi-centred nature, with large commercial areas and high population density outside the CBD in places like Parramatta, makes it relatively unique worldwide.
Sydney's population density also impacts the availability of job opportunities. Traditionally, denser areas like Sydney offer more job prospects, especially for in-person entry-level positions. However, with the rise of remote work, this advantage may diminish. Additionally, high population densities can lead to increased pollution of air, water, and land, which urban sustainability programs aim to address.
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Brisbane's population density
Australia has a low population density of 3.3 people per square kilometre, which is among the lowest in the world. However, its biggest cities, such as Sydney, Melbourne, and Brisbane, have a higher population density.
Brisbane is the third-most populous city in Australia, with a population of approximately 2.8 million. The City of Brisbane, which includes the inner portion of Greater Brisbane, has a population of 1,242,825 people. The population density of Brisbane is 346 people per square kilometre, making it quite congested. Brisbane's metropolitan area sprawls over the hilly floodplain of the Brisbane River Valley between Moreton Bay and the Taylor and D'Aguilar mountain ranges. The central business district (CBD) is situated on a peninsula of the Brisbane River, about 15 km from its mouth at Moreton Bay.
Brisbane has a diverse population, with over 36% of its metropolitan population being foreign-born. The population is spread across various ancestries, with the most common being English (39.7%), Australian (34.6%), Irish (13.2%), Scottish (11%), German (6.4%), and Chinese (4.7%). Christianity is the most common religion, with 48.8% of the population identifying as Christian.
The city has a mix of housing types, with 73.4% of residents living in separate houses, 14.7% in apartments, and 11.4% in townhouses or terrace houses. Queenslander-style housing is also common in Brisbane, featuring timber construction with large verandahs and gabled corrugated iron roofs. The city has seen a large increase in the construction of apartment developments since the 1970s, with a focus on providing green and garden spaces.
Brisbane is a global centre for research and innovation and is served by large rail, bus, and ferry networks, as well as the Brisbane Airport and the Port of Brisbane. The city is known for its biodiversity and green spaces, including the City Botanic Gardens, the Brisbane Riverwalk, and the D'Aguilar National Park.
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Perth's population growth
Australia is the sixth-largest nation in the world in terms of physical area, but its population density is incredibly low. As of June 2020, Australia's population density was 3.3 people per square kilometre. 70% of the Australian population lives in the top eight most populous cities.
Perth, the capital city of Western Australia, is home to 2.6 million people. It is the most isolated city in the world, with its closest city being Adelaide, over 2,200 kilometres away. Perth has a population density of 317.7 people per square kilometre, ranking as the fourth most populated state capital city in Australia. However, it is still one of the least populated developed cities globally.
Perth's median age is 32, compared to Australia's median age of 37. The city's main occupations include professionals (22.0%), technicians and trades workers (16.0%), clerical and administrative workers (15.2%), managers (11.4%), and community and personal service workers (9.7%). The top five ancestries in Perth are English, Australian, Irish, Scottish, and Italian. The city attracts approximately 2.24 million visitors annually, offering a combination of natural beauty, a booming economy, and a sunny climate with around eight hours of sunshine daily.
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Canberra's population density
Australia has a low population density of 3.3–3.5 people per square kilometre as of June 2020. However, its biggest cities like Sydney and Melbourne have higher population densities. Melbourne's inner city has Australia's highest population density at 22,400 people per square kilometre, while Potts Point and Pyrmont in Sydney's inner city have the second-highest density in the country at 16,700 and 16,500 people per square kilometre, respectively.
Canberra is Australia's capital and its largest inland city. As of the 2021 census, Canberra had a population of 452,670 residents, which constituted 1.8% of Australia's population. As of June 2024, Canberra's estimated population was 473,855. The population of Canberra has grown rapidly since the 1950s, with the population tripling from 50,000 in 1960 to 146,000 in 1971 and climbing to 203,000 in 1976. The growth of Canberra's population can be attributed to the relocation of several government departments and public servants to the city from Melbourne following World War II.
Canberra has a relatively low population density compared to other Australian cities. The city's design is influenced by the garden city movement and incorporates significant areas of natural vegetation and green spaces. The automobile is the dominant form of transport in Canberra, and the city is laid out so that arterial roads connecting inhabited clusters run through undeveloped areas of open land or forest. This urban planning approach helps to deter non-local traffic from cutting through residential areas and ensures idle land is available for future transport corridors.
Despite its low population density, Canberra has a higher average income and lower unemployment rate compared to national averages. The city has been ranked among the world's best cities to live in and visit, and it offers a high quality of life. As of the 2021 census, 28.7% of Canberra's inhabitants were born overseas, with the top three countries of birth being India, England, and China. The most common languages spoken at home are English, Mandarin, Vietnamese, Cantonese, Hindi, and Spanish.
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Frequently asked questions
Australia is one of the least densely populated countries in the world, with an average of 3.5 people per square kilometre. However, some of its biggest cities, such as Melbourne, Sydney, and Brisbane, have a much higher population density. Melbourne's inner city has Australia's highest population density at 22,400 people per square kilometre. Outside of these cities, Fortitude Valley in Brisbane, Surfers Paradise in the Gold Coast, and Kingston in the ACT are areas with high population densities.
High population densities in Australia are often due to economic factors, a favourable climate, steady housing, and the presence of bustling cities.
Population density can impact the quality of life in Australia in various ways. Some people enjoy the hustle and bustle of densely populated cities like Melbourne, while others prefer the wide-open spaces of the Australian bush. Densely populated areas may offer more job opportunities, but they also come with drawbacks such as increased pollution and the loss of natural landscapes.
Urban sustainability aims to create self-sufficient cities that are less reliant on the surrounding countryside. As population density increases in Australia, there is a trade-off between green spaces and apartment buildings. Cities with higher population densities may face challenges in maintaining sustainability and preserving natural landscapes.
Population density has a complex relationship with housing trends in Australia. While high population densities do not strongly influence house values, they can impact rental growth. Areas with higher population densities have shown slightly stronger rental appreciation for units but weaker growth for houses over the past decade.















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