28,329 ▲ +3.2%
Higher than 65% of council (lga) areas.
- 2011: 27,453
- 2016: 28,475
- 2021: 28,329
The number of people who usually live in the area, counted on Census night.
Mosman · Council (LGA)
Demographics & Identity in Mosman
Who lives here — how many people, how old they are, and how communities identify.
Over half of the residents in Mosman are married, reflecting a mature community where the typical person is 45. This is noticeably older than the national figure of 38. The population has grown slightly to 28,329 people and is increasingly shaped by a rising number of seniors.
28,329
▲ +3.2%
- 1–2: 3 areas
- 2–3: 0 areas
- 3–4: 0 areas
- 4–7: 0 areas
- 7–12: 2 areas
- 12–20: 1 area
- 20–33: 0 areas
- 33–55: 1 area
- 55–91: 0 areas
- 91–150: 5 areas
- 150–248: 3 areas
- 248–409: 13 areas
- 409–675: 22 areas
- 675–1,115: 38 areas
- 1,115–1,840: 37 areas
- 1,840–3,038: 30 areas
- 3,038–5,014: 40 areas
- 5,014–8,276: 49 areas
- 8,276–13,661: 54 areas
- 13,661–22,550: 57 areas
- 22,550–37,223: 43 areas
- 37,223–61,442: 49 areas
- 61,442–101,420: 39 areas
- 101,420–167,409: 37 areas
- 167,409–276,336: 31 areas
- 276,336–456,137: 8 areas
- 456,137–752,926: 2 areas
- 752,926–1,242,825: 1 area
All council (lga) areas, 2021. The marker is Mosman — higher than 65% of areas.
| Mosman | 28,329 |
|---|---|
| Greater Sydney | 5,231,147 |
| New South Wales | 8,072,163 |
| Australia | 25,422,788 |
Population
How many people, and the typical age.
The typical resident is 45, which is 7 years older than the Australian figure and 5 years older than in 2011. The total population grew by 3.2% since 2011, adding about 876 people.
45 yrs ▲ +12.5%
Older than 67% of council (lga) areas.
- 2011: 40 yrs
- 2016: 42 yrs
- 2021: 45 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 now make up 21.9% of the area, which is well above the national figure of 17.2%. This rise in older adults helps explain why children under 15 have fallen to 16.3%, a figure a little below the state average.
21.9% ▲ +31.1%
Higher than 62% of council (lga) areas.
- 2011: 16.7%
- 2016: 19.1%
- 2021: 21.9%
Share of the population aged 65 years and over.
16.3% ▼ -10.9%
Lower than 69% of council (lga) areas.
- 2011: 18.3%
- 2016: 17.6%
- 2021: 16.3%
Share of the population aged under 15 years.
Age structure
View on map →Mosman splits fairly evenly between Older adults (45–64) (28%) and Young adults (25–44) (23%), with Seniors (65+) at 22%.
Identity & relationships
First Nations identity and marital status.
Indigenous residents make up 0.3% of the population, which is among the lowest for similar areas and well below the New South Wales figure of 3.4%. Those in de facto relationships rose to 11.5% since 2011, matching the national average.
0.3% ▲ +164.9%
Lower than 99% of council (lga) areas.
- 2011: 0.1%
- 2016: 0.2%
- 2021: 0.3%
Share of people who identify as Aboriginal and/or Torres Strait Islander.
11.5% ▲ +30.5%
Lower than 72% of council (lga) areas.
- 2011: 8.8%
- 2016: 10.2%
- 2021: 11.5%
Share of people aged 15+ who are in a de facto marriage (registered marriages excluded).
Marital status
View on map →In Mosman, Married is the majority at 50%; Never married is next at 33%.
Age & sex structure
Sources
- Census of Population and Housing — Australian Bureau of Statistics, 2021 (CC BY 4.0).
More for Mosman
Cite this page
Australian Bureau of Statistics. (2021). Demographics & Identity in Mosman [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/lga/LGA15350/mosman/topic/demographics-identity