13,256 ▲ +20.9%
Higher than 88% of suburb / locality areas.
- 2011: 10,961
- 2016: 12,195
- 2021: 13,256
The number of people who usually live in the area, counted on Census night.
St Marys · Suburb / Locality
Demographics & Identity in St Marys
Who lives here — how many people, how old they are, and how communities identify.
A noticeably younger population defines St Marys, where the typical resident is just 34. With a total population of 13,256, it is one of the largest areas of its kind in the region and has a high proportion of children.
13,256
▲ +20.9%
- 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 St Marys — higher than 88% of areas.
| St Marys | 13,256 |
|---|---|
| 2760, NSW | 37,632 |
| New South Wales | 8,072,163 |
| Australia | 25,422,788 |
Population
How many people, and the typical age.
The typical resident here is 34, which is noticeably younger than the New South Wales figure of 39 and the national average of 38.
34 yrs ▼ -2.9%
Younger than 87% of suburb / locality areas.
- 2011: 35 yrs
- 2016: 34 yrs
- 2021: 34 yrs
Half the population is older than this age, and half younger.
Age profile
How the population splits across age groups.
Families with children are common, as those under 15 make up 21.3% of the population, well above the national figure of 18.2%. Conversely, seniors aged 65 and over make up only 12.7%, which is well below the state average of 17.6%.
12.7% ▼ -6.2%
Lower than 76% of suburb / locality areas.
- 2011: 13.6%
- 2016: 12.9%
- 2021: 12.7%
Share of the population aged 65 years and over.
21.3% ▲ +4.1%
Higher than 76% of suburb / locality areas.
- 2011: 20.4%
- 2016: 20.3%
- 2021: 21.3%
Share of the population aged under 15 years.
Age structure
View on map →In St Marys, the largest group is Young adults (25–44) at 32%, followed by Older adults (45–64) (22%) and Children (0–14) (21%).
Identity & relationships
First Nations identity and marital status.
Aboriginal and Torres Strait Islander people make up 4.6% of the population, which is a little above the national figure of 3.2%. About 11.3% of residents are in a de facto relationship, a rate about the same as across Australia.
4.6% ▲ +12.9%
Higher than 71% of suburb / locality areas.
- 2011: 4.0%
- 2016: 4.1%
- 2021: 4.6%
Share of people who identify as Aboriginal and/or Torres Strait Islander.
11.3% ▲ +25.8%
Lower than 57% of suburb / locality areas.
- 2011: 9.0%
- 2016: 11.5%
- 2021: 11.3%
Share of people aged 15+ who are in a de facto marriage (registered marriages excluded).
Marital status
View on map →In St Marys, the largest group is Never married at 42%, followed by Married (37%) and Divorced (11%).
Age & sex structure
Sources
- Census of Population and Housing — Australian Bureau of Statistics, 2021 (CC BY 4.0).
More for St Marys
Cite this page
Australian Bureau of Statistics. (2021). Demographics & Identity in St Marys [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sal/SAL13658/st-marys/topic/demographics-identity