Birchgrove, NSW
By Lauren McCaleb · Reviewed by Dylan Duncan ·
Among Australia's more advantaged suburbs
Birchgrove is more socio-economically advantaged than about 99% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 1178, where about 1000 is the national average).
A socio-economic measure from ABS Census data — not a measure of how good a suburb is to live in or visit. How we calculate this.
Birchgrove at a glance
- Population (2021)
- 3,228
- Median age
- 46
- Median weekly household income
- $3,603
- SEIFA score
- 1178
- Coordinates
- -33.8509, 151.1823
Birchgrove demographics (2021 Census)
The figures below profile Birchgrove using the Australian Bureau of Statistics 2021 Census; every percentage is a share of a clearly stated Census count, so each one traces back to the source. At a glance, the largest age group is mid-life (45–64) at 31%, 27% of homes are rented, and 29% of residents were born overseas.
Age profile
| Age group | People | Share |
|---|---|---|
| Children (0–14) | 564 | 17% |
| Youth (15–24) | 268 | 8% |
| Young adults (25–44) | 737 | 23% |
| Mid-life (45–64) | 1,002 | 31% |
| Seniors (65+) | 658 | 20% |
Share of the 3,229 people counted by age.
Housing and households
| Tenure | Dwellings | Share |
|---|---|---|
| Owned outright | 527 | 41% |
| Owned with a mortgage | 383 | 30% |
| Rented | 345 | 27% |
| Dwelling type | Dwellings | Share |
|---|---|---|
| Houses | 363 | 28% |
| Townhouses & semis | 681 | 53% |
| Flats & apartments | 233 | 18% |
Tenure and dwelling shares are of the roughly 1,277 occupied private dwellings in Birchgrove.
- Median weekly rent
- $700
- Median monthly mortgage
- $4,000
- Average household size
- 2.4 people
- Median weekly family income
- $4,706
- Median weekly personal income
- $1,661
Community and culture
- Born overseas
- 911 (29%)
- Speaks a language other than English at home
- 298 (9%)
- Aboriginal and/or Torres Strait Islander
- 11 (0%)
Work and education
- Completed Year 12
- 2,166 (85%)
- Labour-force participation
- 66.2%
- Unemployment rate
- 3.5%
- Employed full-time
- 1,070
- Employed part-time
- 501
Source: ABS Census of Population and Housing, 2021 (General Community Profile, by Suburb and Locality). © Australian Bureau of Statistics, released under CC BY 4.0. How we group bands and derive each share is set out on our methodology page.
Weather and climate in Birchgrove
Based on 2014–2023 records, the warmest month in Birchgrove is January (average daytime high around 25.7°C) and the coolest is July (around 16.5°C). The area receives roughly 1084 mm of rain across the year.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 25.7°C | 19.3°C | 104 mm |
| Feb | 25.1°C | 19°C | 119 mm |
| Mar | 24°C | 18°C | 186 mm |
| Apr | 21.9°C | 15°C | 100 mm |
| May | 19.2°C | 11.7°C | 56 mm |
| Jun | 16.5°C | 9.8°C | 74 mm |
| Jul | 16.5°C | 8.7°C | 70 mm |
| Aug | 17.3°C | 9.2°C | 67 mm |
| Sep | 19.6°C | 11.3°C | 55 mm |
| Oct | 21.8°C | 13.7°C | 92 mm |
| Nov | 22.8°C | 15.5°C | 78 mm |
| Dec | 24.7°C | 17.5°C | 83 mm |
Climate normals, 2014–2023 (Open-Meteo, ERA5 reanalysis).
Common questions about Birchgrove
Where is Birchgrove?
Birchgrove is a suburb of New South Wales, Australia.
What is the population of Birchgrove?
At the 2021 Census, Birchgrove had a population of about 3,228.
Is Birchgrove an advantaged area?
Birchgrove has an ABS SEIFA score of 1178, where about 1000 is the national average — higher scores indicate greater relative socio-economic advantage. That gives it a Suburb Score of 99 out of 100 — more socio-economically advantaged than about 99% of Australian suburbs.
What is the weather like in Birchgrove?
Birchgrove has average daytime highs of about 21.3°C and overnight lows of about 14.1°C, with roughly 1,084 mm of rain across the year (based on 2014–2023 climate normals).
Does Birchgrove have high household incomes?
Birchgrove has one of the highest median weekly household incomes in New South Wales — the 20th-highest among suburbs with at least 1,000 residents at the 2021 Census ($3,603 per week).
Where Birchgrove ranks
Birchgrove appears in these data-driven guides — each a transparent sort on a single ABS figure shown on this page.
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