87,455 ▲ +14.3%
Higher than 70% of sub-region (sa3) areas.
- 2011: 76,536
- 2016: 80,603
- 2021: 87,455
The number of people who usually live in the area, counted on Census night.
Hornsby · Sub-region (SA3)
Demographics & Identity in Hornsby
Who lives here — how many people, how old they are, and how communities identify.
Growth has been a major story for Hornsby, where the population climbed by 14% to reach 87,455 people since 2011. The area is slightly older than the national average, with a typical resident now aged 39. It is a family-heavy region with a higher-than-usual proportion of children.
87,455
▲ +14.3%
- 1–2: 3 areas
- 2–2: 0 areas
- 2–4: 0 areas
- 4–6: 0 areas
- 6–9: 2 areas
- 9–15: 2 areas
- 15–23: 1 area
- 23–37: 0 areas
- 37–57: 1 area
- 57–90: 0 areas
- 90–141: 1 area
- 141–221: 1 area
- 221–347: 1 area
- 347–545: 2 areas
- 545–854: 3 areas
- 854–1,340: 0 areas
- 1,340–2,101: 3 areas
- 2,101–3,296: 1 area
- 3,296–5,169: 2 areas
- 5,169–8,107: 3 areas
- 8,107–12,714: 7 areas
- 12,714–19,940: 16 areas
- 19,940–31,273: 30 areas
- 31,273–49,048: 61 areas
- 49,048–76,924: 90 areas
- 76,924–120,643: 70 areas
- 120,643–189,211: 46 areas
- 189,211–296,748: 12 areas
All sub-region (sa3) areas, 2021. The marker is Hornsby — higher than 70% of areas.
| Hornsby | 87,455 |
|---|---|
| Greater Sydney | 5,231,147 |
| New South Wales | 8,072,163 |
| Australia | 25,422,788 |
Population
How many people, and the typical age.
Hornsby is larger than about 70% of similar areas, having added roughly 10,919 people over the last decade. The typical person living here is 39, which is a little older than the national figure and 2 years older than in 2011.
39 yrs ▲ +5.4%
Younger than 57% of sub-region (sa3) areas.
- 2011: 37 yrs
- 2016: 38 yrs
- 2021: 39 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 19.7% of the population, which is much higher than most areas. While the proportion of seniors is a little below the state and national figures, it has risen by 2.9 percentage points since 2011.
15.8% ▲ +22.3%
Lower than 62% of sub-region (sa3) areas.
- 2011: 12.9%
- 2016: 14.2%
- 2021: 15.8%
Share of the population aged 65 years and over.
19.7% ▼ -3.7%
Higher than 74% of sub-region (sa3) areas.
- 2011: 20.4%
- 2016: 20.4%
- 2021: 19.7%
Share of the population aged under 15 years.
Age structure
View on map →Hornsby splits fairly evenly between Young adults (25–44) (27%) and Older adults (45–64) (26%), with Children (0–14) at 20%.
Identity & relationships
First Nations identity and marital status.
People in de facto relationships make up 7.2% of the population, which is among the lowest for similar areas and well below the national figure. Additionally, the Aboriginal and Torres Strait Islander population is 0.7%, which is much lower than most areas.
0.7% ▲ +46.7%
Lower than 86% of sub-region (sa3) areas.
- 2011: 0.5%
- 2016: 0.6%
- 2021: 0.7%
Share of people who identify as Aboriginal and/or Torres Strait Islander.
7.2% ▲ +21.9%
Lower than 93% of sub-region (sa3) areas.
- 2011: 5.9%
- 2016: 6.1%
- 2021: 7.2%
Share of people aged 15+ who are in a de facto marriage (registered marriages excluded).
Marital status
View on map →In Hornsby, Married is the majority at 57%; Never married is next at 29%.
Age & sex structure
Sources
- Census of Population and Housing — Australian Bureau of Statistics, 2021 (CC BY 4.0).
More for Hornsby
Cite this page
Australian Bureau of Statistics. (2021). Demographics & Identity in Hornsby [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sa3/12102/hornsby/topic/demographics-identity