20,732 ▲ +8.1%
Higher than 90% of statistical area 2 (sa2) areas.
- 2011: 19,182
- 2016: 20,186
- 2021: 20,732
The number of people who usually live in the area, counted on Census night.
Balgowlah - Clontarf - Seaforth · Statistical Area 2 (SA2)
Demographics & Identity in Balgowlah - Clontarf - Seaforth
Who lives here — how many people, how old they are, and how communities identify.
More than half of residents in Balgowlah - Clontarf - Seaforth are married, reflecting a stable and established community. The area has grown to over 20,700 people and is noticeably older than the national average, with a typical resident aged 42.
20,732
▲ +8.1%
- 1–1: 40 areas
- 1–2: 0 areas
- 2–3: 0 areas
- 3–4: 12 areas
- 4–6: 6 areas
- 6–9: 9 areas
- 9–13: 10 areas
- 13–19: 7 areas
- 19–27: 17 areas
- 27–39: 6 areas
- 39–56: 5 areas
- 56–81: 4 areas
- 81–116: 1 area
- 116–168: 5 areas
- 168–242: 3 areas
- 242–349: 4 areas
- 349–503: 2 areas
- 503–725: 9 areas
- 725–1,045: 3 areas
- 1,045–1,506: 5 areas
- 1,506–2,171: 31 areas
- 2,171–3,130: 83 areas
- 3,130–4,513: 217 areas
- 4,513–6,507: 318 areas
- 6,507–9,382: 402 areas
- 9,382–13,526: 546 areas
- 13,526–19,501: 496 areas
- 19,501–28,116: 231 areas
All statistical area 2 (sa2) areas, 2021. The marker is Balgowlah - Clontarf - Seaforth — higher than 90% of areas.
| Balgowlah - Clontarf - Seaforth | 20,732 |
|---|---|
| 2093, NSW | 23,555 |
| New South Wales | 8,072,163 |
| Australia | 25,422,788 |
Population
How many people, and the typical age.
The population grew by 8.1% since 2011, adding about 1,550 people to make it one of the largest areas of its type. This growth has happened alongside an ageing trend, as the typical resident is now 42, which is 4 years older than the national figure.
42 yrs ▲ +7.7%
Older than 64% of statistical area 2 (sa2) 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 21.6% of the population, a figure well above the national average. While the proportion of children fell slightly since 2011, those aged 65 and over rose by 2.4 points to reach 15.9%.
15.9% ▲ +17.6%
Lower than 59% of statistical area 2 (sa2) areas.
- 2011: 13.5%
- 2016: 13.9%
- 2021: 15.9%
Share of the population aged 65 years and over.
21.6% ▼ -10.1%
Higher than 83% of statistical area 2 (sa2) areas.
- 2011: 24.1%
- 2016: 23.7%
- 2021: 21.6%
Share of the population aged under 15 years.
Age structure
View on map →In Balgowlah - Clontarf - Seaforth, the largest group is Older adults (45–64) at 30%, followed by Children (0–14) (22%) and Young adults (25–44) (20%).
Identity & relationships
First Nations identity and marital status.
Only 0.4% of people identify as Aboriginal or Torres Strait Islander, which is well below the New South Wales figure. De facto relationships are also less common here than in most areas, at 9.3%.
0.4% ▲ +45.4%
Lower than 91% of statistical area 2 (sa2) areas.
- 2011: 0.3%
- 2016: 0.3%
- 2021: 0.4%
Share of people who identify as Aboriginal and/or Torres Strait Islander.
9.3% ▲ +16.5%
Lower than 77% of statistical area 2 (sa2) areas.
- 2011: 7.9%
- 2016: 8.6%
- 2021: 9.3%
Share of people aged 15+ who are in a de facto marriage (registered marriages excluded).
Marital status
View on map →In Balgowlah - Clontarf - Seaforth, Married is the majority at 56%; Never married is next at 31%.
Age & sex structure
Sources
- Census of Population and Housing — Australian Bureau of Statistics, 2021 (CC BY 4.0).
More for Balgowlah - Clontarf - Seaforth
Cite this page
Australian Bureau of Statistics. (2021). Demographics & Identity in Balgowlah - Clontarf - Seaforth [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sa2/122011418/balgowlah-clontarf-seaforth/topic/demographics-identity