What is the population of Sydney?
Sydney has a city population of 5,638,830. That is the population within the city's own boundary, not its wider metropolitan area. City population, GeoNames.
Sydney is Australia's largest and most populous city, home to over 5.3 million people. Located on Australia's southeastern coast, Sydney is built around one of the world's most beautiful natural harbors. The iconic Sydney Opera House and Harbour Bridge define the skyline. Sydney is a global city known for quality of life, beautiful beaches, multicultural diversity, and as a gateway to Australia.
City population, GeoNames. GeoNames publishes no year for its population figures, so “record updated” is when the entry was last edited — not the date the population was measured. Elevation is modelled from a digital elevation model rather than surveyed, so it is approximate.
Closest listed cities by great-circle distance from the city centre.
City-proper population against the fifteen largest cities in the dataset.
| Name | City population |
|---|---|
| Shanghai | 24.9M |
| Beijing | 19M |
| Shenzhen | 17.5M |
| Guangzhou | 16.1M |
| Kinshasa | 16M |
| Istanbul | 15.7M |
| Lagos | 15.4M |
| Ho Chi Minh City | 14M |
| Chengdu | 13.6M |
| Lahore | 13M |
| Mumbai | 12.7M |
| São Paulo | 12.4M |
| Mexico City | 12.3M |
| Karachi | 11.6M |
| Tianjin | 11.1M |
| Sydney | 5.64M |
Scheduled-service airports within 100 km, nearest first.
9 km from the city centre
Source: OurAirports, matched by distance.
Sydney was founded in 1788 as a British penal colony—the first European settlement in Australia. Indigenous Eora people had inhabited the area for over 40,000 years. The colony grew with free settlers and gold rush immigration. Sydney developed into a major Pacific city, hosting the 2000 Olympics which showcased the city to the world. Today, over 40% of residents were born overseas.
Sydney is Australia's economic capital, contributing about 25% of national GDP. Key sectors include finance, professional services, technology, tourism, education, and creative industries. Sydney's central business district hosts major banks and corporations. The Port of Sydney handles significant trade. The education sector serves over 200,000 international students. Real estate is a major economic force.
Sydney's culture blends Australian beach lifestyle with urban sophistication. The multicultural population (over 250 birthplaces represented) creates incredible culinary diversity. Indigenous culture is increasingly celebrated. The arts scene includes world-class opera, theater, and contemporary art. Beach culture—surfing, swimming, barbecues—is central to identity. Sydney Mardi Gras is one of the world's largest LGBTQ+ celebrations.
Sydney has a comprehensive public transport network including trains, buses, ferries, and light rail. The Opal card provides integrated ticketing. Sydney Airport is Australia's busiest. Harbor ferries are both transport and attraction. Traffic congestion is significant. Cycling is growing with dedicated paths. Walking is pleasant in central areas.
Sydney faces challenges including extreme housing unaffordability (median house price over $1 million), urban sprawl, traffic congestion, water security, and climate change impacts (bushfires, extreme heat). Sydney's infrastructure struggles with population growth. Inequality between affluent and disadvantaged suburbs is stark. Balancing development with heritage and environment is ongoing.
No free source publishes city population back to 1950, so the parent country's series is shown instead.
| Year | Population |
|---|---|
| 1950 | 8,176,750 |
| 1960 | 10,280,813 |
| 1970 | 12,599,411 |
| 1980 | 14,721,347 |
| 1990 | 17,126,298 |
| 2000 | 19,132,471 |
| 2010 | 22,141,581 |
| 2020 | 25,743,791 |
| 2030 | 28,188,539 |
| 2040 | 30,357,450 |
| 2050 | 32,506,969 |
| 2060 | 34,562,683 |
| 2070 | 36,635,122 |
| 2080 | 38,700,844 |
| 2090 | 40,876,704 |
| 2100 | 43,143,685 |
Sydney has a city population of 5,638,830. That is the population within the city's own boundary, not its wider metropolitan area. City population, GeoNames.
Sydney is in New South Wales, Australia, 247 km from the capital, Canberra. Its coordinates are -33.868, 151.207.
It is the 1st largest of the 88 cities listed in Australia, holding 20.4% of the national population.