3977, VIC · Postcode

Demographics & Identity in 3977, VIC

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

A typical resident in postcode 3977 is just 33, making it one of the youngest areas at this level. The population has surged by 74% since 2011 to reach 117,143 people, driven by a high proportion of children and young adults.

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📍 3977, VIC, Postcode

Where 3977, VIC sits — Total population

117,143 ▲ +73.7%
  • 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 3977, VIC — higher than 98% of areas.

Total population compared with the state and national average
3977, VIC117,143
Casey 365,239
Victoria 6,503,491
Australia 25,422,788

Population

How many people, and the typical age.

The total population grew by about 49,719 people since 2011. This growth has not stopped the area from remaining noticeably younger than both Victoria and Australia, where the typical age is 38.

117,143 ▲ +73.7%

Higher than 98% of postcode areas.

  • 2011: 67,424
  • 2016: 93,326
  • 2021: 117,143

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

33 yrs ▲ +3.1%

Younger than 93% of postcode areas.

  • 2011: 32 yrs
  • 2016: 32 yrs
  • 2021: 33 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 24.5% of the population, which is well above the national figure of 18.2%. Meanwhile, seniors aged 65 and over are much less common here at 9.7% compared to 17.2% across Australia.

9.7% ▲ +14.6%

Lower than 90% of postcode areas.

  • 2011: 8.5%
  • 2016: 9.2%
  • 2021: 9.7%

Share of the population aged 65 years and over.

24.5% ▲ +3.5%

Higher than 95% of postcode areas.

  • 2011: 23.7%
  • 2016: 24.3%
  • 2021: 24.5%

Share of the population aged under 15 years.

Age structure

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In 3977, VIC, the largest group is Young adults (25–44) at 33%, followed by Children (0–14) (25%) and Older adults (45–64) (21%).

Identity & relationships

First Nations identity and marital status.

About 51% of people are married and 34.8% have never married. The proportion of Aboriginal and Torres Strait Islander people is 0.9%, which is much lower than most similar areas.

10.8% ▼ -4.7%

Lower than 69% of postcode areas.

  • 2011: 11.3%
  • 2016: 10.6%
  • 2021: 10.8%

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

Marital status

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In 3977, VIC, Married is the majority at 51%; Never married is next at 35%.

Age & sex structure

  • 85+: 85+: 437 males; 85+: 714 females
  • 80–84: 80–84: 568 males; 80–84: 726 females
  • 75–79: 75–79: 996 males; 75–79: 1,092 females
  • 70–74: 70–74: 1,424 males; 70–74: 1,717 females
  • 65–69: 65–69: 1,814 males; 65–69: 1,899 females
  • 60–64: 60–64: 2,306 males; 60–64: 2,405 females
  • 55–59: 55–59: 2,861 males; 55–59: 2,839 females
  • 50–54: 50–54: 3,250 males; 50–54: 3,279 females
  • 45–49: 45–49: 3,676 males; 45–49: 3,700 females
  • 40–44: 40–44: 4,565 males; 40–44: 4,254 females
  • 35–39: 35–39: 5,483 males; 35–39: 5,597 females
  • 30–34: 30–34: 4,560 males; 30–34: 5,427 females
  • 25–29: 25–29: 4,046 males; 25–29: 4,216 females
  • 20–24: 20–24: 3,774 males; 20–24: 3,672 females
  • 15–19: 15–19: 3,595 males; 15–19: 3,534 females
  • 10–14: 10–14: 4,509 males; 10–14: 4,123 females
  • 5–9: 5–9: 5,207 males; 5–9: 4,975 females
  • 0–4: 0–4: 5,117 males; 0–4: 4,806 females

Sources

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

More for 3977, VIC

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in 3977, VIC [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/poa/POA3977/3977-vic/topic/demographics-identity