7,288 —
Higher than 87% of suburb / locality areas.
- 2016: 7,311
- 2021: 7,288
The number of people who usually live in the area, counted on Census night.
Summer Hill · Suburb / Locality
Who lives here — how many people, how old they are, and how communities identify.
Noticeably younger residents define Summer Hill, where the typical age is 36 compared to 39 across New South Wales. With over 7,000 people, it is one of the largest areas of its kind in the region. The local population is skewed heavily toward working-age adults.
All suburb / locality areas, 2021. The marker is Summer Hill — higher than 87% of areas.
| Summer Hill | 7,288 |
|---|---|
| 2130, NSW | 7,288 |
| New South Wales | 8,072,163 |
| Australia | 25,422,788 |
How many people, and the typical age.
The typical resident here is 36 years old, which is noticeably younger than the New South Wales figure of 39. With 7,288 people, it is among the largest areas at this level.
7,288 —
Higher than 87% of suburb / locality areas.
The number of people who usually live in the area, counted on Census night.
36 yrs —
Younger than 83% of suburb / locality areas.
Half the population is older than this age, and half younger.
How the population splits across age groups.
Young adults aged 25 to 44 make up nearly 40% of the population. This helps explain why the area has a much lower share of children and seniors than both the state and national figures.
12.5% —
Lower than 76% of suburb / locality areas.
Share of the population aged 65 years and over.
13.8% —
Lower than 71% of suburb / locality areas.
Share of the population aged under 15 years.
In Summer Hill, the largest group is Young adults (25–44) at 40%, followed by Older adults (45–64) (24%) and Children (0–14) (14%).
First Nations identity and marital status.
A high number of people live in de facto relationships, at 20.1%, which is well above the 11.5% national figure. Those who have never married make up 52.5% of the population, while 0.8% identify as Aboriginal and Torres Strait Islander.
0.8% —
Lower than 62% of suburb / locality areas.
Share of people who identify as Aboriginal and/or Torres Strait Islander.
20.1% —
Higher than 88% of suburb / locality areas.
Share of people aged 15+ who are in a de facto marriage (registered marriages excluded).
In Summer Hill, Never married is the majority at 52%; Married is next at 34%.
Australian Bureau of Statistics. (2021). Demographics & Identity in Summer Hill [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sal/SAL13702/summer-hill/topic/demographics-identity