3,101 ▲ +13.7%
Lower than 53% of postcode areas.
- 2011: 2,728
- 2016: 2,963
- 2021: 3,101
The number of people who usually live in the area, counted on Census night.
6121, WA · Postcode
Demographics & Identity in 6121, WA
Who lives here — how many people, how old they are, and how communities identify.
Older adults make up the largest age group in postcode 6121, where the typical resident is 43. This is noticeably older than the national figure of 38 years. The population has grown by 14% since 2011, now totalling 3,101 people.
3,101
▲ +13.7%
- 1–2: 1 area
- 2–2: 0 areas
- 2–4: 0 areas
- 4–5: 2 areas
- 5–8: 3 areas
- 8–12: 2 areas
- 12–19: 2 areas
- 19–29: 12 areas
- 29–44: 19 areas
- 44–67: 35 areas
- 67–102: 30 areas
- 102–155: 70 areas
- 155–237: 97 areas
- 237–360: 129 areas
- 360–549: 158 areas
- 549–836: 168 areas
- 836–1,273: 181 areas
- 1,273–1,938: 179 areas
- 1,938–2,951: 157 areas
- 2,951–4,493: 179 areas
- 4,493–6,842: 176 areas
- 6,842–10,418: 210 areas
- 10,418–15,865: 268 areas
- 15,865–24,158: 254 areas
- 24,158–36,786: 182 areas
- 36,786–56,016: 93 areas
- 56,016–85,299: 28 areas
- 85,299–129,888: 8 areas
All postcode areas, 2021. The marker is 6121, WA — lower than 53% of areas.
| 6121, WA | 3,101 |
|---|---|
| Serpentine-Jarrahdale | 32,173 |
| Western Australia | 2,660,026 |
| Australia | 25,422,788 |
Population
How many people, and the typical age.
The total population grew to 3,101 people by 2021, which is smaller than about 52% of similar areas. Residents have aged over the last decade, with the typical age rising by 4 years to 43.
43 yrs ▲ +10.3%
Older than 52% of postcode areas.
- 2011: 39 yrs
- 2016: 41 yrs
- 2021: 43 yrs
Half the population is older than this age, and half younger.
Age profile
How the population splits across age groups.
Older adults aged 45 to 64 are the biggest group at 32.6%. While the share of children under 15 is about the same as the national figure at 18.8%, the proportion of seniors aged 65 and over is much lower than most areas at 14.5%.
14.5% ▲ +91.6%
Lower than 77% of postcode areas.
- 2011: 7.6%
- 2016: 11.0%
- 2021: 14.5%
Share of the population aged 65 years and over.
18.8% ▼ -15.3%
Higher than 67% of postcode areas.
- 2011: 22.2%
- 2016: 19.7%
- 2021: 18.8%
Share of the population aged under 15 years.
Age structure
View on map →In 6121, WA, the largest group is Older adults (45–64) at 33%, followed by Young adults (25–44) (20%) and Children (0–14) (19%).
Identity & relationships
First Nations identity and marital status.
Marriage is common here, with 56.8% of people married, while those in de facto relationships are much lower than most areas at 10.1%. Aboriginal and Torres Strait Islander people make up 1.6% of the population, which is a little below the state average.
1.6% ▲ +139.3%
Lower than 61% of postcode areas.
- 2011: 0.7%
- 2016: 1.0%
- 2021: 1.6%
Share of people who identify as Aboriginal and/or Torres Strait Islander.
10.1% ▲ +4.9%
Lower than 75% of postcode areas.
- 2011: 9.6%
- 2016: 10.9%
- 2021: 10.1%
Share of people aged 15+ who are in a de facto marriage (registered marriages excluded).
Marital status
View on map →In 6121, WA, Married is the majority at 57%; Never married is next at 31%.
Age & sex structure
Sources
- Census of Population and Housing — Australian Bureau of Statistics, 2021 (CC BY 4.0).
More for 6121, WA
Cite this page
Australian Bureau of Statistics. (2021). Demographics & Identity in 6121, WA [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/poa/POA6121/6121-wa/topic/demographics-identity