40,874 ▲ +7.8%
Higher than 94% of suburb / locality areas.
- 2011: 37,915
- 2016: 39,594
- 2021: 40,874
The number of people who usually live in the area, counted on Census night.
Castle Hill · Suburb / Locality
Demographics & Identity in Castle Hill
Who lives here — how many people, how old they are, and how communities identify.
A typical resident in Castle Hill is 42, making this area noticeably older than the national figure. With over 40,000 people, it is one of the largest areas of its kind in the region. The population is balanced across different life stages, from a strong presence of children to a significant number of seniors.
40,874
▲ +7.8%
- 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 Castle Hill — higher than 94% of areas.
| Castle Hill | 40,874 |
|---|---|
| 2154, NSW | 40,874 |
| New South Wales | 8,072,163 |
| Australia | 25,422,788 |
Population
How many people, and the typical age.
The total population is 40,874, placing it among the largest areas at this level. The typical resident is 42, which is noticeably older than the state average of 39.
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 18.8% of the population, a figure higher than most similar areas. Seniors aged 65 and over account for 19.9%, which is a little above the national figure of 17.2%.
19.9% ▲ +34.6%
Higher than 56% of suburb / locality areas.
- 2011: 14.8%
- 2016: 17.7%
- 2021: 19.9%
Share of the population aged 65 years and over.
18.8% ▼ -2.9%
Higher than 62% of suburb / locality areas.
- 2011: 19.3%
- 2016: 19.5%
- 2021: 18.8%
Share of the population aged under 15 years.
Age structure
View on map →Castle Hill splits fairly evenly between Older adults (45–64) (26%) and Young adults (25–44) (23%), with Seniors (65+) at 20%.
Identity & relationships
First Nations identity and marital status.
Married couples are very common here, making up 60.1% of the population. In contrast, the proportion of people in de facto relationships is 4.3%, which is well below the national figure of 11.5%.
0.4% ▲ +7.1%
Lower than 67% of suburb / locality areas.
- 2011: 0.4%
- 2016: 0.3%
- 2021: 0.4%
Share of people who identify as Aboriginal and/or Torres Strait Islander.
4.3% ▲ +8.8%
Lower than 90% of suburb / locality areas.
- 2011: 4.0%
- 2016: 3.9%
- 2021: 4.3%
Share of people aged 15+ who are in a de facto marriage (registered marriages excluded).
Marital status
View on map →In Castle Hill, Married is the majority at 60%; Never married is next at 26%.
Age & sex structure
Sources
- Census of Population and Housing — Australian Bureau of Statistics, 2021 (CC BY 4.0).
More for Castle Hill
Cite this page
Australian Bureau of Statistics. (2021). Demographics & Identity in Castle Hill [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sal/SAL10846/castle-hill/topic/demographics-identity