Seaforth · Suburb / Locality

Demographics & Identity in Seaforth

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

A much higher share of children under 15 live in Seaforth than in the rest of Australia. This family-focused profile is reflected in the typical resident's age of 42, which is noticeably older than the national figure. With over 7,300 residents, it is one of the larger suburbs in the region.

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📍 Seaforth, Suburb / Locality

Where Seaforth sits — Total population

7,384 ▲ +9.8%
  • 1–1: 689 areas
  • 1–2: 0 areas
  • 2–3: 119 areas
  • 3–5: 108 areas
  • 5–7: 243 areas
  • 7–11: 241 areas
  • 11–16: 514 areas
  • 16–24: 579 areas
  • 24–36: 898 areas
  • 36–53: 1059 areas
  • 53–79: 1168 areas
  • 79–117: 1203 areas
  • 117–174: 1171 areas
  • 174–258: 1010 areas
  • 258–384: 856 areas
  • 384–571: 670 areas
  • 571–850: 616 areas
  • 850–1,263: 567 areas
  • 1,263–1,879: 520 areas
  • 1,879–2,794: 590 areas
  • 2,794–4,154: 679 areas
  • 4,154–6,177: 585 areas
  • 6,177–9,186: 528 areas
  • 9,186–13,659: 405 areas
  • 13,659–20,311: 195 areas
  • 20,311–30,202: 96 areas
  • 30,202–44,910: 33 areas
  • 44,910–66,781: 10 areas

All suburb / locality areas, 2021. The marker is Seaforth — higher than 87% of areas.

Total population compared with the state and national average
Seaforth7,384
2092, NSW 7,384
New South Wales 8,072,163
Australia 25,422,788

Population

How many people, and the typical age.

The total population has reached 7,384, making it one of the largest areas of its kind. Residents here are noticeably older than those in New South Wales and Australia, with a typical age of 42.

7,384 ▲ +9.8%

Higher than 87% of suburb / locality areas.

  • 2011: 6,726
  • 2016: 7,139
  • 2021: 7,384

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

42 yrs ▲ +7.7%

Younger than 62% of suburb / locality areas.

  • 2011: 39 yrs
  • 2016: 40 yrs
  • 2021: 42 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 23.2% of the population, which is well above the national figure of 18.2%. Meanwhile, those aged 65 and over represent 15.3% of residents, a little below the state and national averages.

15.3% ▲ +20.6%

Lower than 66% of suburb / locality areas.

  • 2011: 12.7%
  • 2016: 12.7%
  • 2021: 15.3%

Share of the population aged 65 years and over.

23.2% ▼ -9.8%

Higher than 84% of suburb / locality areas.

  • 2011: 25.7%
  • 2016: 25.5%
  • 2021: 23.2%

Share of the population aged under 15 years.

Age structure

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In Seaforth, the largest group is Older adults (45–64) at 31%, followed by Children (0–14) (23%) and Young adults (25–44) (18%).

Identity & relationships

First Nations identity and marital status.

Married people make up 60.4% of the area, while those in de facto relationships are well below the national average at 6.7%. Aboriginal and Torres Strait Islander people account for 0.5% of the population, which is a little below the state and national figures.

0.5% ▲ +127.7%

Lower than 65% of suburb / locality areas.

  • 2011: 0.2%
  • 2016: 0.4%
  • 2021: 0.5%

Share of people who identify as Aboriginal and/or Torres Strait Islander.

6.7% ▲ +12.2%

Lower than 84% of suburb / locality areas.

  • 2011: 6.0%
  • 2016: 6.9%
  • 2021: 6.7%

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

Marital status

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In Seaforth, Married is the majority at 60%; Never married is next at 29%.

Age & sex structure

  • 85+: 85+: 68 males; 85+: 87 females
  • 80–84: 80–84: 89 males; 80–84: 70 females
  • 75–79: 75–79: 115 males; 75–79: 126 females
  • 70–74: 70–74: 136 males; 70–74: 152 females
  • 65–69: 65–69: 137 males; 65–69: 166 females
  • 60–64: 60–64: 204 males; 60–64: 188 females
  • 55–59: 55–59: 283 males; 55–59: 269 females
  • 50–54: 50–54: 312 males; 50–54: 326 females
  • 45–49: 45–49: 347 males; 45–49: 339 females
  • 40–44: 40–44: 240 males; 40–44: 291 females
  • 35–39: 35–39: 160 males; 35–39: 211 females
  • 30–34: 30–34: 113 males; 30–34: 116 females
  • 25–29: 25–29: 101 males; 25–29: 106 females
  • 20–24: 20–24: 176 males; 20–24: 186 females
  • 15–19: 15–19: 307 males; 15–19: 282 females
  • 10–14: 10–14: 389 males; 10–14: 336 females
  • 5–9: 5–9: 280 males; 5–9: 266 females
  • 0–4: 0–4: 227 males; 0–4: 210 females

Sources

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

More for Seaforth

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in Seaforth [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sal/SAL13524/seaforth/topic/demographics-identity