31,534 ▲ +20.7%
Higher than 87% of postcode areas.
- 2011: 26,121
- 2016: 30,499
- 2021: 31,534
The number of people who usually live in the area, counted on Census night.
3121, VIC · Postcode
Demographics & Identity in 3121, VIC
Who lives here — how many people, how old they are, and how communities identify.
A typical resident in postcode 3121 is just 34, making the area noticeably younger than the national figure. This is a fast-growing region that has added about 5,413 people since 2011, with nearly half of all residents now falling into the young adult bracket.
31,534
▲ +20.7%
- 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 3121, VIC — higher than 87% of areas.
Population
How many people, and the typical age.
The population grew 21% since 2011 to reach 31,534, making it one of the largest areas at this level. The typical age of 34 is much lower than most similar areas.
34 yrs ▲ +3.0%
Younger than 90% of postcode areas.
- 2011: 33 yrs
- 2016: 33 yrs
- 2021: 34 yrs
Half the population is older than this age, and half younger.
Age profile
How the population splits across age groups.
Children under 15 make up only 9.6% of the population, which is well below the national figure of 18.2%. Seniors aged 65 and over are also much lower than most areas at 10.9%, while young adults aged 25 to 44 dominate the area at 48.4%.
10.9% ▲ +13.1%
Lower than 88% of postcode areas.
- 2011: 9.6%
- 2016: 10.0%
- 2021: 10.9%
Share of the population aged 65 years and over.
9.6% ▼ -10.6%
Lower than 93% of postcode areas.
- 2011: 10.7%
- 2016: 10.0%
- 2021: 9.6%
Share of the population aged under 15 years.
Age structure
View on map →In 3121, VIC, the largest group is Young adults (25–44) at 48%, followed by Older adults (45–64) (21%) and Seniors (65+) (11%).
Identity & relationships
First Nations identity and marital status.
People in de facto relationships make up 21.5% of the population, which is far above the Victorian figure of 11.2%. Meanwhile, the Aboriginal and Torres Strait Islander population is much lower than most areas at 0.6%.
0.6% ▲ +73.5%
Lower than 84% of postcode areas.
- 2011: 0.3%
- 2016: 0.3%
- 2021: 0.6%
Share of people who identify as Aboriginal and/or Torres Strait Islander.
21.5% ▲ +27.6%
Higher than 96% of postcode areas.
- 2011: 16.9%
- 2016: 19.3%
- 2021: 21.5%
Share of people aged 15+ who are in a de facto marriage (registered marriages excluded).
Marital status
View on map →In 3121, VIC, Never married is the majority at 61%; Married is next at 26%.
Age & sex structure
Sources
- Census of Population and Housing — Australian Bureau of Statistics, 2021 (CC BY 4.0).
More for 3121, VIC
Cite this page
Australian Bureau of Statistics. (2021). Demographics & Identity in 3121, VIC [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/poa/POA3121/3121-vic/topic/demographics-identity