Kordabup vs William Bay
William Bay is the younger of the two, with a median age of 51 against 57 in Kordabup. In both, the large majority of households own their home and the large majority of homes are detached houses. In Kordabup, most households are people living alone. In William Bay, about half of households are couple families. On these figures, Kordabup tends to suit people living alone and older residents, while William Bay suits couples.
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
- Kordabup has more parks and reserves (4 vs 1)
- William Bay is already more of a family suburb (73% vs 38%)
Weighs schools, house stock, crime, parks, childcare, and who already lives there.
First-home buyers
William Bay
ahead on the one thing that separates them
- leaves households under less mortgage stress (46% vs 65%)
Weighs mortgage stress.
Renters
Too close to call
Nothing among the 3 things we measure here separates them by enough to be worth acting on.
Weighs rent, rental stress, and how much is for rent.
Commuting to the city
William Bay
ahead on 2 of the 3 things we measure here
- has a shorter drive in (306 min vs 314 min)
- sits closer to the CBD (432.8 km vs 438.1 km)
Weighs distance, drive time, and walkability.
Downsizers and retirees
Kordabup
ahead on the one thing that separates them
- has more residents already 65 and over (35% vs 24%)
Weighs who already lives there, GPs, walkability, and crime.
Investors
William Bay
ahead on the one thing that separates them
- is growing faster (17.1% vs -5.4%)
Weighs population growth.
Where they sit
Kordabup and William 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
William Bay has higher household incomes ($57,408 vs $48,048); Kordabup skews older (57 vs 51).
| Kordabup | William Bay | |
|---|---|---|
| Population | 141 | 164 +16% vs other |
| Population trend (2016 → 2021) | -5.4% | +17.1% |
| Median age | 57 | 51 |
| Median household income | $48,048/yr | $57,408/yr +19% vs other |
| Median weekly rent | $265/wk | $275/wk +4% vs other |
Age profile
Share of residents in each band, 2021 Census.
Bars are drawn against the largest share shown (27.0%).
Who lives together
Household composition, 2021 Census.
Who owns and who rents
Occupied private dwellings by tenure, 2021 Census.
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 (11.3%).
Qualifications
Highest non-school qualification, residents 15+, 2021 Census.
Bars are drawn against the largest share shown (19.1%).
What people live in
Occupied private dwellings by structure, 2021 Census.
Development activity
| Kordabup | William Bay | |
|---|---|---|
| New dwellings approved | 54 across Denmark same for both | |
| Approvals change year on year | +0% same for both | |
Ranking within WA
| Kordabup | William Bay | |
|---|---|---|
| House price | — same for both | |
| Income | Higher than 8% of WA | Higher than 14% of WA |
| Schools | — same for both | |
| Walkability | Higher than 35% of WA | Higher than 12% of WA |
| Affordability | — same for both | |
| EV adoption | Higher than 76% of WA | Higher than 75% of WA |
| NBN connectivity | Higher than 48% of WA | Higher than 47% of WA |
Liveability
| Kordabup | William Bay | |
|---|---|---|
| Grade | — same for both | |
| Score | — same for both | |
| Socio-economic band | mid-range socio-economic decile 5/10 | advantaged area decile 7/10 |
Risk profile
Kordabup carries more bushfire risk (74 vs 63).
| Kordabup | William Bay | |
|---|---|---|
| Bushfire | High 74/100 | Moderate 63/100 |
| Crime | Low 17/100 | Low 13/100 |
| Flood | None 0/100 same for both | |
| Coastal erosion | None 0/100 | Moderate 66/100 |
| Aircraft noise | None 0/100 same for both | |
| Industrial facilities nearby | 0 within 5 km same for both | |
Schools
| Kordabup | William 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 | |
Amenities in the suburb
| Kordabup | William Bay | |
|---|---|---|
| Cafes & restaurants | 0 | 1 |
| Parks & reserves | 4 | 1 |
| Beaches | 0 | 2 |
Mobility
Kordabup sits further from the CBD (438.1 km vs 432.8 km).
| Kordabup | William Bay | |
|---|---|---|
| Walkability score | 0/100 same for both | |
| Distance to Perth | 438.1 km +1% vs other | 432.8 km |
| Drive time (normal traffic) | 314 min | 306 min |
| Electric vehicle share | 0.9% postcode 6333 same for both | |
| Rooftop solar per 100 dwellings | 38 postcode 6333 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 (51.0%).
Setting
| Kordabup | William Bay | |
|---|---|---|
| Elevation | 68 m above sea level, at the suburb centre | 30 m above sea level, at the suburb centre |
| Distance to the ocean | 11.1 km | 1.8 km 2.4 km to a named beach |
NBN connectivity
| Kordabup | William Bay | |
|---|---|---|
| Connectivity score | 24/100 | 23/100 |
| Most common technology | Fixed wireless same for both | |
| Full-fibre (FTTP) share | 0% 78 premises | 0% 77 premises |
Council rates
| Kordabup | William Bay | |
|---|---|---|
| Average residential rate | $2,478/yr same for both | |
| Council | Denmark same for both | |
Federal electorate
| Kordabup | William Bay | |
|---|---|---|
| Division | O'connor same for both | |
| Member | Rick Wilson same for both | |
| Party | Liberal same for both | |
First Home Owner Grant
| Kordabup | William Bay | |
|---|---|---|
| Grant amount | $10,000 same for both | |
| Property price cap | $800,000 same for both | |
| Eligibility | New same for both | |
Tags
More comparisons
Other comparisons with Kordabup
Other comparisons with William 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.