3920, VIC · Postcode

Demographics & Identity in 3920, VIC

Who lives here — how many people, how old they are, and how communities identify.

A typical resident in postcode 3920 is just 21 years old, making it one of the youngest areas in the country. This stark contrast is seen in a population where over half the people are between 15 and 24, while no one aged 65 or over lives here.

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📍 3920, VIC, Postcode

Where 3920, VIC sits — Total population

1,124 ▲ +3.6%
  • 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 3920, VIC — lower than 69% of areas.

Total population compared with the state and national average
3920, VIC1,124
Mornington Peninsula 168,948
Victoria 6,503,491
Australia 25,422,788

Population

How many people, and the typical age.

The population grew by 3.6% since 2011 to reach 1,124 people. Residents are far younger than the national figure of 38, with the typical age remaining steady at 21 for the last decade.

1,124 ▲ +3.6%

Lower than 69% of postcode areas.

  • 2011: 1,085
  • 2016: 1,040
  • 2021: 1,124

The number of people who usually live in the area, counted on Census night.

21 yrs → 0.0%

Younger than 99% of postcode areas.

  • 2011: 21 yrs
  • 2016: 22 yrs
  • 2021: 21 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 9.5% of the population, which is well below the Victorian average. This age gap is even more extreme for seniors, as there are no people aged 65 and over living here.

0.0% → —

Lower than 99% of postcode areas.

  • 2011: 0.0%
  • 2016: 0.0%
  • 2021: 0.0%

Share of the population aged 65 years and over.

9.5% ▲ +6.5%

Lower than 93% of postcode areas.

  • 2011: 8.9%
  • 2016: 6.4%
  • 2021: 9.5%

Share of the population aged under 15 years.

Age structure

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In 3920, VIC, Youth (15–24) is the majority at 57%; Young adults (25–44) is next at 28%.

Identity & relationships

First Nations identity and marital status.

Aboriginal and Torres Strait Islander people make up 4.3% of the area, which is well above the state figure. De facto relationships are also very common here at 25.7%, a rate far above the national average.

25.7% ▲ +31.3%

Higher than 99% of postcode areas.

  • 2011: 19.5%
  • 2016: 34.2%
  • 2021: 25.7%

Share of people aged 15+ who are in a de facto marriage (registered marriages excluded).

Marital status

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In 3920, VIC, Never married is the majority at 81%; Married is next at 16%.

Age & sex structure

  • 85+: 85+: 0 males; 85+: 0 females
  • 80–84: 80–84: 0 males; 80–84: 0 females
  • 75–79: 75–79: 0 males; 75–79: 0 females
  • 70–74: 70–74: 0 males; 70–74: 0 females
  • 65–69: 65–69: 0 males; 65–69: 0 females
  • 60–64: 60–64: 0 males; 60–64: 3 females
  • 55–59: 55–59: 8 males; 55–59: 9 females
  • 50–54: 50–54: 13 males; 50–54: 0 females
  • 45–49: 45–49: 14 males; 45–49: 9 females
  • 40–44: 40–44: 22 males; 40–44: 25 females
  • 35–39: 35–39: 33 males; 35–39: 25 females
  • 30–34: 30–34: 48 males; 30–34: 19 females
  • 25–29: 25–29: 113 males; 25–29: 38 females
  • 20–24: 20–24: 308 males; 20–24: 75 females
  • 15–19: 15–19: 190 males; 15–19: 63 females
  • 10–14: 10–14: 13 males; 10–14: 13 females
  • 5–9: 5–9: 20 males; 5–9: 15 females
  • 0–4: 0–4: 26 males; 0–4: 22 females

Sources

  • Census of Population and Housing — Australian Bureau of Statistics, 2021 (CC BY 4.0).

More for 3920, VIC

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in 3920, VIC [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/poa/POA3920/3920-vic/topic/demographics-identity