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World Measure
City profile · Australia · Oceania

Sydney

City population
5,638,830
#1
in Australia
#1
in New South Wales
#50
worldwide
CanberraSydney
-33.868, 151.207 · 247 km from Canberra
Share of Australia
20.4%
Of the national population
Elevation
58 m
Approximate — modelled, not surveyed
Distance to capital
To Canberra
Time zone
Australia/Sydney
IANA zone identifier

About Sydney

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.

Position in Australia
#1of 88
LargestSmallest
Position in New South Wales
#1of 23
LargestSmallest
Metro population
5,367,000
0.065% of world population
Archive estimate
Annual growth
+1.25%
Archive estimate
Density
434/km²
12,368 km² metro area

Key Facts

Country
Rank in region
#1of 23
Founded
1788
Coordinates
-33.868, 151.207
Record updated
24 June 2026
Entry edited, not measured

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.

Nearby Cities

All 88 in Australia

Closest listed cities by great-circle distance from the city centre.

Compared with the World's Largest Cities

City-proper population against the fifteen largest cities in the dataset.

City-proper figures only. Administrative boundaries differ between countries, so these are not directly comparable to metropolitan-area estimates.
Sydney compared with the fifteen largest cities
NameCity population
Shanghai24.9M
Beijing19M
Shenzhen17.5M
Guangzhou16.1M
Kinshasa16M
Istanbul15.7M
Lagos15.4M
Ho Chi Minh City14M
Chengdu13.6M
Lahore13M
Mumbai12.7M
São Paulo12.4M
Mexico City12.3M
Karachi11.6M
Tianjin11.1M
Sydney5.64M

Airports

Scheduled-service airports within 100 km, nearest first.

  • Sydney Kingsford Smith International AirportSYD

    9 km from the city centre

Source: OurAirports, matched by distance.

History

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.

Economy

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.

Culture

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.

Transportation

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.

Current Challenges

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.

Highlights

Landmarks & Attractions

  • Sydney Opera House (UNESCO)
  • Sydney Harbour Bridge
  • Bondi Beach
  • The Rocks historic district
  • Royal Botanic Garden
  • Taronga Zoo
  • Circular Quay
  • Darling Harbour

What Sydney Is Known For

  • Opera House
  • Harbour Bridge
  • Beaches
  • Quality of life
  • Multiculturalism

Universities

  • University of Sydney
  • UNSW
  • UTS
  • Macquarie University

Sports Teams

  • Sydney FC
  • Western Sydney Wanderers (football)
  • Sydney Swans (AFL)
  • Sydney Roosters (rugby)

Interesting Facts

  • Sydney Opera House has over 1 million roof tiles
  • Sydney Harbour Bridge contains 6 million rivets
  • Bondi Beach is one of the world's most famous beaches
  • Sydney has over 100 beaches within the metropolitan area
  • The 2000 Sydney Olympics were the largest event Australia has hosted
  • Sydney's LGBTQ+ Mardi Gras attracts 500,000+ spectators

Population Trend in Australia

No free source publishes city population back to 1950, so the parent country's series is shown instead.

010M20M30M40M1950197520002025205020752100projected →
This is Australia's national population, not Sydney's. Source: UN World Population Prospects 2024.
Australia population, 1950 to 2100
YearPopulation
19508,176,750
196010,280,813
197012,599,411
198014,721,347
199017,126,298
200019,132,471
201022,141,581
202025,743,791
203028,188,539
204030,357,450
205032,506,969
206034,562,683
207036,635,122
208038,700,844
209040,876,704
210043,143,685

Sydney Population FAQ

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.

Where is Sydney?

Sydney is in New South Wales, Australia, 247 km from the capital, Canberra. Its coordinates are -33.868, 151.207.

How big is Sydney compared with other cities in Australia?

It is the 1st largest of the 88 cities listed in Australia, holding 20.4% of the national population.

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