Ethelton vs Semaphore Park
Ethelton is the younger of the two, with a median age of 42 against 46 in Semaphore Park. In both, most households own their home and about half of households are people living alone. In Ethelton, most homes are detached houses. Houses cost more in Semaphore Park: a median of $1 million, against $870,000 in Ethelton, though rent is higher in Ethelton.
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
- Ethelton has more separate houses rather than flats (71% vs 54%)
- Semaphore Park has more parks and reserves (6 vs 1)
Weighs schools, house stock, crime, parks, childcare, and who already lives there.
First-home buyers
Ethelton
ahead on 2 of the 3 things we measure here
- leaves households under less mortgage stress (26% vs 33%)
- has cheaper houses ($870,000 vs $1,000,000)
Weighs house prices, unit prices, and mortgage stress.
Renters
Semaphore Park
ahead on the one thing that separates them
- has cheaper rent ($250/wk vs $300/wk)
Weighs rent, rental stress, and how much is for rent.
Commuting to the city
Semaphore Park
ahead on the one thing that separates them
- is more walkable (80/100 vs 69/100)
Weighs distance, drive time, rail access, and walkability.
Downsizers and retirees
Semaphore Park
ahead on 3 of the 5 things we measure here
- has more units and townhouses to downsize into (46% vs 29%)
- has more residents already 65 and over (26% vs 18%)
- is more walkable (80/100 vs 69/100)
- But Ethelton carries lower crime risk (68/100 vs 87/100)
Weighs smaller dwellings, who already lives there, GPs, walkability, and crime.
Investors
Too close to call
Nothing among the 2 things we measure here separates them by enough to be worth acting on.
Weighs house yield and population growth.
Where they sit
Ethelton and Semaphore Park 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
Semaphore Park has more residents (4,541 vs 1,487); Ethelton rents higher ($300/wk vs $250/wk).
| Ethelton | Semaphore Park | |
|---|---|---|
| Population | 1,487 | 4,541 +205% vs other |
| Population trend (2016 → 2021) | +1.9% | +5.7% |
| Median age | 42 | 46 |
| Median household income | $69,940/yr +6% vs other | $65,624/yr |
| Median weekly rent | $300/wk +17% vs other | $250/wk |
Age profile
Share of residents in each band, 2021 Census.
Bars are drawn against the largest share shown (15.9%).
Who lives together
Household composition, 2021 Census.
Who owns and who rents
Occupied private dwellings by tenure, 2021 Census.
Qualifications
Highest non-school qualification, residents 15+, 2021 Census.
Bars are drawn against the largest share shown (17.8%).
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 (6.1%).
What people live in
Occupied private dwellings by structure, 2021 Census.
Property market
| Ethelton | Semaphore Park | |
|---|---|---|
| Median house price | $870,000 | $1,000,000 |
| Median unit price | $679,642 | $722,500 |
| Median land price | — | $900,000 |
| Typical days to sell (houses) | 20 days from 16 sales | 19 days from 36 sales |
House price by bedroom count
Only bed counts both suburbs published enough sales for. Sale counts are shown because the buckets differ in depth.
10 vs 6 sales
29 vs 53 sales
Zoning mix
| Ethelton | Semaphore Park | |
|---|---|---|
| Residential | 89% | 86% |
| Parks and recreation | 9% | 11% |
| Environmental | 0% | 3% |
| Commercial | 2% | 0% |
| 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
| Ethelton | Semaphore Park | |
|---|---|---|
| New dwellings approved | 1,176 across Port Adelaide Enfield | 1,636 across Charles Sturt |
| Approvals change year on year | +23% | +109% |
Gross rental yield
| Ethelton | Semaphore Park | |
|---|---|---|
| Houses | 3.8% $640/wk on $875K | 3.4% $620/wk on $950K |
| Units | — same for both | |
Ranking within SA
| Ethelton | Semaphore Park | |
|---|---|---|
| House price | Higher than 17% of SA | Higher than 51% of SA |
| Income | Higher than 39% of SA | Higher than 33% of SA |
| Schools | — same for both | |
| Walkability | Higher than 87% of SA | Higher than 92% of SA |
| Affordability | Higher than 70% of SA | Higher than 22% of SA |
| EV adoption | Higher than 78% of SA | Higher than 81% of SA |
| NBN connectivity | Higher than 80% of SA | Higher than 81% of SA |
| Rental yield (houses) | Higher than 42% of SA | Higher than 27% of SA |
Liveability
Semaphore Park is more walkable (80 vs 69).
| Ethelton | Semaphore Park | |
|---|---|---|
| Grade | C same for both | |
| Score | 42/100 | 44/100 |
| Socio-economic band | mid-range socio-economic decile 4/10 | below-average income decile 3/10 |
Risk profile
Ethelton carries more flood risk (85 vs 62); Semaphore Park carries more crime risk (87 vs 68).
| Ethelton | Semaphore Park | |
|---|---|---|
| Bushfire | None 0/100 same for both | |
| Crime | Moderate 68/100 | High 87/100 |
| Flood | High 85/100 | Moderate 62/100 |
| Coastal erosion | None 0/100 | Moderate 47/100 |
| Aircraft noise | None 0/100 same for both | |
| Industrial facilities nearby | 15 within 5 km | 14 within 5 km |
Schools
| Ethelton | Semaphore Park | |
|---|---|---|
| Inside the suburb | 0 | 1 |
| Rated above peers | 0 | 1 |
| Rated at peers | 0 same for both | |
| Rated below peers | 0 same for both | |
Schools in Ethelton
No schools recorded inside this suburb's boundary. Children here will be zoned to schools nearby.
Schools in Semaphore Park
- Westport Primary School Government · Primary above peers
Amenities in the suburb
| Ethelton | Semaphore Park | |
|---|---|---|
| Cafes & restaurants | 0 | 1 |
| Parks & reserves | 1 | 6 |
| Childcare | 1 | 3 |
| Pharmacies | 0 | 1 |
Mobility
| Ethelton | Semaphore Park | |
|---|---|---|
| Walkability score | 69/100 | 80/100 |
| Distance to Adelaide | 15.1 km | 15.6 km +3% vs other |
| Drive time (normal traffic) | 24 min | 25 min |
| Public transport score | 37/100 Rail · Bus | 78/100 Bus |
| Peak arrivals per hour | 4.0 7-9am + 5-7pm | 35.0 7-9am + 5-7pm |
| Median peak wait | 14 min scheduled, not actual | 1 min scheduled, not actual |
| Electric vehicle share | 1.0% postcode 5015 | 1.2% postcode 5019 |
| Rooftop solar per 100 dwellings | 50 postcode 5015 | 52 postcode 5019 |
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 (76.7%).
Setting
| Ethelton | Semaphore Park | |
|---|---|---|
| Elevation | 7 m above sea level, at the suburb centre | 8 m above sea level, at the suburb centre |
| Distance to the ocean | 1.3 km 1.5 km to a named beach | 848 m 868 m to a named beach |
NBN connectivity
| Ethelton | Semaphore Park | |
|---|---|---|
| Connectivity score | 66/100 | 69/100 |
| Most common technology | Fibre to the node same for both | |
| Full-fibre (FTTP) share | 38% 779 premises | 44% 2,251 premises |
Climate
| Ethelton | Semaphore Park | |
|---|---|---|
| Annual rainfall | 394 mm same for both | |
| Summer max (Jan) | 28.1°C same for both | |
| Winter min (Jul) | 7.8°C same for both | |
Air quality (annual mean)
| Ethelton | Semaphore Park | |
|---|---|---|
| PM2.5 | 4.5 µg/m³ same for both | |
| PM10 | 20.3 µg/m³ same for both | |
| NO₂ | — same for both | |
Council rates
| Ethelton | Semaphore Park | |
|---|---|---|
| Average residential rate | $1,311/yr | $1,726/yr |
| Council | Port Adelaide Enfield | Charles Sturt |
Federal electorate
| Ethelton | Semaphore Park | |
|---|---|---|
| Division | Hindmarsh same for both | |
| Member | Mark Butler same for both | |
| Party | Australian Labor Party same for both | |
First Home Owner Grant
| Ethelton | Semaphore Park | |
|---|---|---|
| Grant amount | $15,000 same for both | |
| Property price cap | — same for both | |
| Eligibility | New same for both | |
Tags
Ethelton
Semaphore Park
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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.