Gymea Bay, NSW
By Lauren McCaleb · Reviewed by Dylan Duncan ·
Among Australia's more advantaged suburbs
Gymea Bay is more socio-economically advantaged than about 98% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 1133, 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.
Is Gymea Bay a good place to live?
There’s no single answer — it depends on what matters to you. So instead of one mystery number, we break it down: a transparent score on each part of life we can back with public data, and an honest “not yet” on the parts we can’t.
Strong on the data we score
A weighted blend of the 2 components we can score for Gymea Bay from public data. It sits alongside — and reconciles with — the socio-economic Suburb Score above; it is a transparent read, not a complete verdict.
Socio-economic advantage
98/100Among Australia's more advantaged suburbs
Among Australia's more advantaged suburbs — the same ABS SEIFA-based Suburb Score (98/100) shown above. Income, education and occupation, as published by the ABS. · ABS SEIFA 2021
Housing affordability
1/100Among the more expensive suburbs
Median weekly rent was $680 at the 2021 Census — more affordable than about 1% of suburbs we can compare. Housing data only, no valuations. · ABS Census 2021
Not yet scored
We’d rather leave these open than publish a number we can’t stand behind. Here’s where each one stands.
- Amenities & accessNot scored yet — our OpenStreetMap amenity mapping is still rolling out across suburbs.
- Green spaceNot scored yet — our OpenStreetMap green-space mapping is still rolling out across suburbs.
- TransportNot scored yet — our OpenStreetMap public-transport mapping is still rolling out across suburbs.
- SchoolsNot scored yet — school performance (ACARA / ICSEA) needs a data-reuse licence cleared before we can publish it.
- SafetyNot scored yet — Australia has no single open crime dataset and safety data carries defamation and legal care, so it is gated pending a go/no-go and will be data-only when added.
- CommunityNot scored yet — we won't reduce community to a number from a proxy. We'd rather leave it open than publish an invented value judgement.
A transparent read on public data, not a verdict — and not a measure of any person or community. See our methodology for how each component is worked out and why some aren’t scored yet.
Gymea Bay at a glance
- Population (2021)
- 6,983
- Median age
- 42
- Median weekly household income
- $3,047
- SEIFA score
- 1133
- Local government area
- Sutherland Shire
- Coordinates
- -34.0495, 151.0848
Map of Gymea Bay
© OpenStreetMap contributors · View larger map
Housing & property in Gymea Bay
What it costs to live in Gymea Bay and how residents hold their homes, from the Australian Bureau of Statistics 2021 Census.
- Median rent
- $680
- per week
- Median mortgage
- $3,033
- per month
- Owner-occupied
- 91%
- of dwellings
- Rented
- 7%
- of dwellings
The full tenure and dwelling-type breakdown is in the Gymea Bay demographics section below.
Source: ABS Census of Population and Housing, 2021. © Australian Bureau of Statistics, released under CC BY 4.0. See our methodology.
Gymea Bay demographics (2021 Census)
The figures below profile Gymea Bay 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 29% and 15% of residents were born overseas.
Age profile
| Age group | People | Share |
|---|---|---|
| Children (0–14) | 1,429 | 20% |
| Youth (15–24) | 1,031 | 15% |
| Young adults (25–44) | 1,307 | 19% |
| Mid-life (45–64) | 2,022 | 29% |
| Seniors (65+) | 1,187 | 17% |
Share of the 6,976 people counted by age.
Housing and households
| Tenure | Dwellings | Share |
|---|---|---|
| Owned outright | 970 | 44% |
| Owned with a mortgage | 1,042 | 47% |
| Rented | 160 | 7% |
| Dwelling type | Dwellings | Share |
|---|---|---|
| Houses | 1,979 | 90% |
| Townhouses & semis | 187 | 9% |
| Flats & apartments | 24 | 1% |
Tenure and dwelling shares are of the roughly 2,190 occupied private dwellings in Gymea Bay.
- Average household size
- 3.1 people
- Median weekly family income
- $3,244
- Median weekly personal income
- $1,049
Community and culture
- Born overseas
- 1,008 (15%)
- Speaks a language other than English at home
- 506 (7%)
- Aboriginal and/or Torres Strait Islander
- 90 (1%)
Work and education
- Completed Year 12
- 3,482 (67%)
- Labour-force participation
- 67.6%
- Unemployment rate
- 2.9%
- Employed full-time
- 2,030
- Employed part-time
- 1,216
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 Gymea Bay
Based on 2014–2023 records, the warmest month in Gymea Bay is January (average daytime high around 27.9°C) and the coolest is July (around 17°C). The area receives roughly 862 mm of rain across the year.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 27.9°C | 18.8°C | 83 mm |
| Feb | 26.8°C | 18.3°C | 94 mm |
| Mar | 25.3°C | 17.3°C | 141 mm |
| Apr | 22.8°C | 13.9°C | 72 mm |
| May | 19.8°C | 10.4°C | 40 mm |
| Jun | 16.9°C | 8.4°C | 57 mm |
| Jul | 17°C | 7°C | 57 mm |
| Aug | 18.1°C | 7.6°C | 53 mm |
| Sep | 20.9°C | 9.8°C | 43 mm |
| Oct | 23.5°C | 12.6°C | 78 mm |
| Nov | 24.8°C | 14.7°C | 72 mm |
| Dec | 27.1°C | 17°C | 72 mm |
Climate normals, 2014–2023 (Open-Meteo, ERA5 reanalysis).
Share your local knowledge of Gymea Bay
Lived here or spent time in Gymea Bay? Add a review or a quick tip. Reviews and tips are moderated before they appear.
Common questions about Gymea Bay
Is Gymea Bay a good place to live?
There's no single answer, so we score what the public data can back. On socio-economic advantage and housing affordability, Gymea Bay rates 66/100 overall (Strong on the data we score). Public transport, schools and safety aren't scored yet — see our methodology for why.
What is the median rent in Gymea Bay?
At the 2021 Census, the median weekly rent in Gymea Bay was $680, and the median monthly mortgage repayment was $3,033. These are official ABS Census figures — StreetScout publishes housing data only, with no property valuations or agent referrals.
Where is Gymea Bay?
Gymea Bay is a suburb of New South Wales, Australia, in the Sutherland Shire local government area.
What is the population of Gymea Bay?
At the 2021 Census, Gymea Bay had a population of about 6,983.
Is Gymea Bay an advantaged area?
Gymea Bay has an ABS SEIFA score of 1133, where about 1000 is the national average — higher scores indicate greater relative socio-economic advantage. That gives it a Suburb Score of 98 out of 100 — more socio-economically advantaged than about 98% of Australian suburbs.
What is the weather like in Gymea Bay?
Gymea Bay has average daytime highs of about 22.6°C and overnight lows of about 13°C, with roughly 862 mm of rain across the year (based on 2014–2023 climate normals).
Nearby suburbs in New South Wales
More suburb guides in New South Wales
Other hand-written, cited guides — browse all guides.