2104, NSW · Postcode

Demographics & Identity in 2104, NSW

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

A typical resident in postcode 2104 is 58, making this area far older than both New South Wales and Australia. This aging trend is striking, with the population growing by 23% since 2011 as the community becomes increasingly dominated by seniors.

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📍 2104, NSW, Postcode

Where 2104, NSW sits — Total population

3,807 ▲ +23.1%
  • 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 2104, NSW — higher than 50% of areas.

Total population compared with the state and national average
2104, NSW3,807
Northern Beaches 263,554
New South Wales 8,072,163
Australia 25,422,788

Population

How many people, and the typical age.

The population reached 3,807 people in 2021, which is larger than about 51% of similar areas. Residents here are among the oldest in the region, with the typical age rising 5 years since 2011.

3,807 ▲ +23.1%

Higher than 50% of postcode areas.

  • 2011: 3,093
  • 2016: 3,620
  • 2021: 3,807

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

58 yrs ▲ +9.4%

Older than 98% of postcode areas.

  • 2011: 53 yrs
  • 2016: 56 yrs
  • 2021: 58 yrs

Half the population is older than this age, and half younger.

Age profile

How the population splits across age groups.

Seniors aged 65 and over make up 40.6% of the population, a figure far above the national average. This helps explain why children under 15 are much less common here than in most areas, falling to 12.1%.

40.6% ▲ +23.4%

Higher than 99% of postcode areas.

  • 2011: 32.9%
  • 2016: 38.5%
  • 2021: 40.6%

Share of the population aged 65 years and over.

12.1% ▼ -12.5%

Lower than 88% of postcode areas.

  • 2011: 13.9%
  • 2016: 13.6%
  • 2021: 12.1%

Share of the population aged under 15 years.

Age structure

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In 2104, NSW, the largest group is Seniors (65+) at 41%, followed by Older adults (45–64) (26%) and Children (0–14) (12%).

Identity & relationships

First Nations identity and marital status.

Only 0.4% of residents identify as Aboriginal or Torres Strait Islander, which is well below the state and national figures. Those in de facto relationships make up 6.4% of the population, among the lowest for similar areas.

6.4% ▲ +28.7%

Lower than 93% of postcode areas.

  • 2011: 5.0%
  • 2016: 5.8%
  • 2021: 6.4%

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

Marital status

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In 2104, NSW, Married is the majority at 55%; Never married is next at 21%.

Age & sex structure

  • 85+: 85+: 93 males; 85+: 208 females
  • 80–84: 80–84: 129 males; 80–84: 156 females
  • 75–79: 75–79: 149 males; 75–79: 202 females
  • 70–74: 70–74: 139 males; 70–74: 187 females
  • 65–69: 65–69: 135 males; 65–69: 154 females
  • 60–64: 60–64: 126 males; 60–64: 152 females
  • 55–59: 55–59: 133 males; 55–59: 128 females
  • 50–54: 50–54: 114 males; 50–54: 129 females
  • 45–49: 45–49: 111 males; 45–49: 112 females
  • 40–44: 40–44: 71 males; 40–44: 84 females
  • 35–39: 35–39: 34 males; 35–39: 59 females
  • 30–34: 30–34: 45 males; 30–34: 39 females
  • 25–29: 25–29: 69 males; 25–29: 33 females
  • 20–24: 20–24: 73 males; 20–24: 69 females
  • 15–19: 15–19: 105 males; 15–19: 109 females
  • 10–14: 10–14: 79 males; 10–14: 114 females
  • 5–9: 5–9: 93 males; 5–9: 68 females
  • 0–4: 0–4: 50 males; 0–4: 55 females

Sources

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

More for 2104, NSW

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in 2104, NSW [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/poa/POA2104/2104-nsw/topic/demographics-identity