Brentwood vs Hardwicke Bay
Brentwood is the younger of the two, with a median age of 49 against 61 in Hardwicke Bay. In both, the large majority of households own their home and the large majority of homes are detached houses. In Brentwood, about half of households are people living alone. In Hardwicke Bay, most households are people living alone. On these figures, Brentwood tends to suit couples, while Hardwicke Bay suits people living alone and older residents.
Which one suits you?
There is no overall winner — the suburb that suits a family with school-age kids is routinely the wrong one for someone commuting into the city. So each of these answers its own question, against a checklist you can see, using the same figures in the tables below.
Families with school-age kids
They split
one each way, out of the 6 things we measure here
- Brentwood is already more of a family suburb (50% vs 28%)
- Hardwicke Bay carries lower crime risk (16/100 vs 45/100)
Weighs schools, house stock, crime, parks, childcare, and who already lives there.
First-home buyers
Brentwood
ahead on the one thing that separates them
- leaves households under less mortgage stress (15% vs 33%)
Weighs mortgage stress.
Renters
Brentwood
ahead on 2 of the 3 things we measure here
- leaves renters under less rental stress (11% vs 33%)
- has cheaper rent ($150/wk vs $245/wk)
Weighs rent, rental stress, and how much is for rent.
Commuting to the city
They split
one each way, out of the 3 things we measure here
- Brentwood sits closer to the CBD (219.6 km vs 222.9 km)
- Hardwicke Bay is more walkable (14/100 vs 0/100)
Weighs distance, drive time, and walkability.
Downsizers and retirees
Hardwicke Bay
ahead on 3 of the 4 things we measure here
- is more walkable (14/100 vs 0/100)
- carries lower crime risk (16/100 vs 45/100)
- has more residents already 65 and over (40% vs 31%)
Weighs who already lives there, GPs, walkability, and crime.
Investors
Hardwicke Bay
ahead on the one thing that separates them
- is growing faster (18.3% vs -7.8%)
Weighs population growth.
Where they sit
Brentwood and Hardwicke Bay drawn to the same scale. Both outlines are shown together, so the map answers whether they share a border and how their areas compare.
Bars start at zero. Scores, risks and rankings are drawn against their full 0–100 range; other rows are drawn in proportion to the larger of the two.
Side by side, out of 100
Risks are inverted — shown as safety and low exposure — so a longer bar always means better.
Demographics
Hardwicke Bay has more residents (149 vs 71); Brentwood has higher household incomes ($69,316 vs $38,220).
| Brentwood | Hardwicke Bay | |
|---|---|---|
| Population | 71 | 149 +110% vs other |
| Population trend (2016 → 2021) | -7.8% | +18.3% |
| Median age | 49 | 61 |
| Median household income | $69,316/yr +45% vs other | $38,220/yr |
| Median weekly rent | $150/wk | $245/wk +63% vs other |
Age profile
Share of residents in each band, 2021 Census.
Bars are drawn against the largest share shown (27.5%).
Where residents were born
Largest overseas birthplaces, as a share of all residents, 2021 Census. A dash means that country is not among the suburb's own eight largest.
Bars are drawn against the largest share shown (12.8%).
Who lives together
Household composition, 2021 Census.
What people live in
Occupied private dwellings by structure, 2021 Census.
Qualifications
Highest non-school qualification, residents 15+, 2021 Census.
Bars are drawn against the largest share shown (25.5%).
Who owns and who rents
Occupied private dwellings by tenure, 2021 Census.
Property market
| Brentwood | Hardwicke Bay | |
|---|---|---|
| Median house price | — | $464,375 |
| Median unit price | — same for both | |
| Median land price | — | $335,000 |
Zoning mix
| Brentwood | Hardwicke Bay | |
|---|---|---|
| Rural and farming | 99% | 89% |
| Environmental | 1% | 8% |
| Residential | 0% | 2% |
| Zoning sets what may be built, not what is there today. A single address can sit in a different zone to the suburb around it. Zones as at 2026-09. | ||
Development activity
| Brentwood | Hardwicke Bay | |
|---|---|---|
| New dwellings approved | 97 across Yorke Peninsula same for both | |
| Approvals change year on year | -18% same for both | |
Ranking within SA
| Brentwood | Hardwicke Bay | |
|---|---|---|
| House price | — same for both | |
| Income | Higher than 39% of SA | Higher than 5% of SA |
| Schools | — same for both | |
| Walkability | Higher than 19% of SA | Higher than 68% of SA |
| Affordability | — same for both | |
| EV adoption | Higher than 10% of SA | Higher than 11% of SA |
| NBN connectivity | Higher than 56% of SA | Higher than 63% of SA |
Liveability
Hardwicke Bay is more walkable (14 vs 0).
| Brentwood | Hardwicke Bay | |
|---|---|---|
| Grade | — same for both | |
| Score | — same for both | |
| Socio-economic band | mid-range socio-economic decile 4/10 | below-average income decile 2/10 |
Risk profile
Brentwood carries more bushfire risk (21 vs 0); Brentwood carries more crime risk (45 vs 16).
| Brentwood | Hardwicke Bay | |
|---|---|---|
| Bushfire | Low 21/100 | None 0/100 |
| Crime | Moderate 45/100 | Low 16/100 |
| Flood | — same for both | |
| Coastal erosion | Moderate 48/100 | None 0/100 |
| Aircraft noise | None 0/100 same for both | |
| Industrial facilities nearby | 0 within 5 km same for both | |
Schools
| Brentwood | Hardwicke Bay | |
|---|---|---|
| Inside the suburb | 0 same for both | |
| Rated above peers | 0 same for both | |
| Rated at peers | 0 same for both | |
| Rated below peers | 0 same for both | |
Mobility
Hardwicke Bay sits further from the CBD (222.9 km vs 219.6 km).
| Brentwood | Hardwicke Bay | |
|---|---|---|
| Walkability score | 0/100 | 14/100 |
| Distance to Adelaide | 219.6 km | 222.9 km +2% vs other |
| Drive time (normal traffic) | 157 min same for both | |
| Electric vehicle share | 0.1% postcode 5575 same for both | |
| Rooftop solar per 100 dwellings | 64 postcode 5575 same for both | |
How people get to work
Method of travel on census day 2021 — which fell during COVID restrictions, so working from home is inflated and every travel mode understated.
Bars are drawn against the largest share shown (100.0%).
Setting
| Brentwood | Hardwicke Bay | |
|---|---|---|
| Elevation | 20 m above sea level, at the suburb centre | 7 m above sea level, at the suburb centre |
| Distance to the ocean | 5.2 km | 167 m |
NBN connectivity
| Brentwood | Hardwicke Bay | |
|---|---|---|
| Connectivity score | 30/100 same for both | |
| Most common technology | Fixed wireless same for both | |
| Full-fibre (FTTP) share | 0% 31 premises | 0% 252 premises |
Climate
| Brentwood | Hardwicke Bay | |
|---|---|---|
| Annual rainfall | 425 mm same for both | |
| Summer max (Jan) | 26.9°C same for both | |
| Winter min (Jul) | 8.1°C same for both | |
Council rates
| Brentwood | Hardwicke Bay | |
|---|---|---|
| Average residential rate | $1,494/yr same for both | |
| Council | Yorke Peninsula same for both | |
Federal electorate
| Brentwood | Hardwicke Bay | |
|---|---|---|
| Division | Grey same for both | |
| Member | Tom Venning same for both | |
| Party | Liberal same for both | |
First Home Owner Grant
| Brentwood | Hardwicke Bay | |
|---|---|---|
| Grant amount | $15,000 same for both | |
| Property price cap | — same for both | |
| Eligibility | New same for both | |
Tags
More comparisons
Other comparisons with Brentwood
Other comparisons with Hardwicke Bay
Information shown is provided as-is from Australian government and commercial data sources.
Always verify with the relevant authority before making property decisions.
See Data Sources and How We Calculate for details.