🇦🇺 ABS Census 2021 · 14,663 SA2 Areas
Australia
Population
How are Australians spread across the country? Population by state, age, density, and the biggest suburbs.
25.4M
Total Population
45
Median Age
3.7
People per km²
9
States & Territories
📊 Source: ABS Census of Population and Housing, 2021
State Breakdown
Population by state
How Australia's population is distributed across states and territories.
New South Wales
8,072,118
Median Age 45.7
Density 10.5/km²
SA2 Areas 4348
Male/Female 49% / 51%
Victoria
6,503,500
Median Age 46.4
Density 30.5/km²
SA2 Areas 2837
Male/Female 49% / 51%
Queensland
5,156,239
Median Age 44.4
Density 3.2/km²
SA2 Areas 3112
Male/Female 49% / 51%
Western Australia
2,660,111
Median Age 43.8
Density 1.3/km²
SA2 Areas 1596
Male/Female 50% / 50%
South Australia
1,781,649
Median Age 45.5
Density 2.2/km²
SA2 Areas 1626
Male/Female 49% / 51%
Tasmania
557,693
Median Age 47
Density 11.4/km²
SA2 Areas 735
Male/Female 49% / 51%
Australian Capital Territory
454,464
Median Age 37.7
Density 362.9/km²
SA2 Areas 128
Male/Female 49% / 51%
Northern Territory
232,575
Median Age 34.8
Density 0.2/km²
SA2 Areas 275
Male/Female 51% / 49%
Other Territories
4,796
Median Age 42.2
Density 18.8/km²
SA2 Areas 6
Male/Female 53% / 47%
Most Populated
Top 10 SA2 areas
The largest SA2 statistical areas by population from the 2021 Census.
| # | Suburb / SA2 Area | State | Population | Median Age |
|---|---|---|---|---|
| 1 | Point Cook | Victoria | 66,781 | 33 |
| 2 | Craigieburn | Victoria | 65,178 | 32 |
| 3 | Tarneit | Victoria | 56,370 | 30 |
| 4 | Melbourne | Victoria | 54,941 | 29 |
| 5 | Pakenham | Victoria | 54,118 | 33 |
| 6 | Reservoir (Vic.) | Victoria | 51,096 | 38 |
| 7 | Blacktown | New South Wales | 50,961 | 34 |
| 8 | Berwick | Victoria | 50,298 | 38 |
| 9 | Werribee | Victoria | 50,027 | 35 |
| 10 | Port Macquarie | New South Wales | 47,693 | 48 |
Demographics
National snapshot
Key demographic indicators from the 2021 Census.
12,544,933
Male
49.3%
12,877,112
Female
50.7%
45
Median Age
6.8M
Total km²
📊 Data Sources
ABS Census of Population and Housing, 2021
Population, age, gender, and area data for 2,432 SA2 (Statistical Area Level 2) regions across Australia.
ABS Census →SA2 Statistical Areas
SA2 regions represent functional areas that share social and economic interactions. Each typically has a population of 3,000 to 25,000.