Aldinga vs Sellicks Hill

In both, the large majority of households own their home and most homes are detached houses. In Aldinga, about half of households are people living alone. In Sellicks Hill, most households are couple families. Houses cost more in Sellicks Hill: a median of $1.47 million, against $954,000 in Aldinga, and rent is higher there too. Aldinga is closer to the city centre: 43.6 km, against 54.3 km. On these figures, Aldinga tends to suit people living alone and buyers on a tighter budget, while Sellicks Hill 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

Sellicks Hill

ahead on 3 of the 6 things we measure here

  • carries lower crime risk (52/100 vs 88/100)
  • is already more of a family suburb (69% vs 45%)
  • has more separate houses rather than flats (97% vs 65%)
  • But Aldinga has more childcare (3 vs 0)

Weighs schools, house stock, crime, parks, childcare, and who already lives there.

First-home buyers

They split

one each way, out of the 2 things we measure here

  • Aldinga has cheaper houses ($954,500 vs $1,465,000)
  • Sellicks Hill leaves households under less mortgage stress (26% vs 32%)

Weighs house prices and mortgage stress.

Renters

They split

one each way, out of the 3 things we measure here

  • Aldinga has cheaper rent ($255/wk vs $280/wk)
  • Sellicks Hill leaves renters under less rental stress (16% vs 23%)

Weighs rent, rental stress, and how much is for rent.

Commuting to the city

Aldinga

ahead on 3 of the 3 things we measure here

  • is more walkable (60/100 vs 18/100)
  • sits closer to the CBD (43.6 km vs 54.3 km)
  • has a shorter drive in (42 min vs 52 min)

Weighs distance, drive time, and walkability.

Downsizers and retirees

Aldinga

ahead on 2 of the 5 things we measure here

  • has more units and townhouses to downsize into (35% vs 3%)
  • is more walkable (60/100 vs 18/100)
  • But Sellicks Hill carries lower crime risk (52/100 vs 88/100)

Weighs smaller dwellings, who already lives there, GPs, walkability, and crime.

Investors

Aldinga

ahead on the one thing that separates them

  • is growing faster (33.3% vs -2.3%)

Weighs population growth.

Where they sit

Aldinga and Sellicks Hill drawn to the same scale. Both outlines are shown together, so the map answers whether they share a border and how their areas compare.

Aldinga Sellicks Hill
Hides rows where both suburbs match

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.

Aldinga Sellicks Hill
Walkability 60 / 18
Aldinga — Walkability: 60/100 Sellicks Hill — Walkability: 18/100
Safety 12 / 48
Aldinga — Safety: 12/100 Sellicks Hill — Safety: 48/100
Low fire risk 100 / 64
Aldinga — Low fire risk: 100/100 Sellicks Hill — Low fire risk: 64/100

Demographics

Aldinga has more residents (764 vs 299); Sellicks Hill has higher household incomes ($93,184 vs $57,304).

Aldinga Sellicks Hill
Population 764
+61% vs other
 299
Population trend (2016 → 2021) +33.3% -2.3%
Median age 49 51
Median household income $57,304/yr $93,184/yr
+63% vs other
Median weekly rent $255/wk $280/wk
+10% vs other

Age profile

Share of residents in each band, 2021 Census.

Aldinga Sellicks Hill
0-4 3.9% / 3.0%
Aldinga — 0-4: 3.9% Sellicks Hill — 0-4: 3.0%
5-14 13.5% / 9.4%
Aldinga — 5-14: 13.5% Sellicks Hill — 5-14: 9.4%
15-19 5.6% / 4.3%
Aldinga — 15-19: 5.6% Sellicks Hill — 15-19: 4.3%
20-24 2.1% / 9.4%
Aldinga — 20-24: 2.1% Sellicks Hill — 20-24: 9.4%
25-34 7.1% / 6.7%
Aldinga — 25-34: 7.1% Sellicks Hill — 25-34: 6.7%
35-44 11.1% / 7.7%
Aldinga — 35-44: 11.1% Sellicks Hill — 35-44: 7.7%
45-54 16.2% / 14.7%
Aldinga — 45-54: 16.2% Sellicks Hill — 45-54: 14.7%
55-64 15.6% / 21.7%
Aldinga — 55-64: 15.6% Sellicks Hill — 55-64: 21.7%
65-74 17.5% / 18.7%
Aldinga — 65-74: 17.5% Sellicks Hill — 65-74: 18.7%
75-84 6.9% / 4.3%
Aldinga — 75-84: 6.9% Sellicks Hill — 75-84: 4.3%
85+ 0.4% / —
Aldinga — 85+: 0.4% Sellicks Hill — 85+: not among its largest

Bars are drawn against the largest share shown (21.7%).

Who lives together

Household composition, 2021 Census.

Aldinga 29.8% couple families
Aldinga — Couple Families: 29.8% Aldinga — Lone Person: 52.9% Aldinga — One Parent Families: 15.1% Aldinga — Group Household: 2.1%
Sellicks Hill 59.4% couple families
Sellicks Hill — Couple Families: 59.4% Sellicks Hill — Lone Person: 23.4% Sellicks Hill — One Parent Families: 9.4% Sellicks Hill — Group Household: 7.8%
Couple Families Lone Person One Parent Families Group Household

Who owns and who rents

Occupied private dwellings by tenure, 2021 Census.

Aldinga 15.5% renting
Aldinga — Owned Outright: 47.2% Aldinga — Mortgage: 37.2% Aldinga — Renting: 15.5%
Sellicks Hill 11.0% renting
Sellicks Hill — Owned Outright: 37.6% Sellicks Hill — Mortgage: 51.4% Sellicks Hill — Renting: 11.0%
Owned outright Mortgage Renting

Qualifications

Highest non-school qualification, residents 15+, 2021 Census.

Aldinga Sellicks Hill
Certificate III & IV 13.2% / 18.7%
Aldinga — Certificate III & IV: 13.2% Sellicks Hill — Certificate III & IV: 18.7%
Bachelor Degree 14.1% / 12.4%
Aldinga — Bachelor Degree: 14.1% Sellicks Hill — Bachelor Degree: 12.4%
Advanced Diploma / Diploma 7.9% / 6.7%
Aldinga — Advanced Diploma / Diploma: 7.9% Sellicks Hill — Advanced Diploma / Diploma: 6.7%
Postgraduate Degree 5.6% / 2.0%
Aldinga — Postgraduate Degree: 5.6% Sellicks Hill — Postgraduate Degree: 2.0%
Graduate Diploma / Certificate 3.0% / 1.7%
Aldinga — Graduate Diploma / Certificate: 3.0% Sellicks Hill — Graduate Diploma / Certificate: 1.7%

Bars are drawn against the largest share shown (18.7%).

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.

Aldinga Sellicks Hill
England 11.4% / 8.7%
Aldinga — England: 11.4% Sellicks Hill — England: 8.7%
Greece — / 2.3%
Aldinga — Greece: not among its largest Sellicks Hill — Greece: 2.3%
Germany 1.0% / 1.0%
Aldinga — Germany: 1.0% Sellicks Hill — Germany: 1.0%
New Zealand 0.9% / 1.0%
Aldinga — New Zealand: 0.9% Sellicks Hill — New Zealand: 1.0%
China — / 1.3%
Aldinga — China: not among its largest Sellicks Hill — China: 1.3%
Italy — / 1.3%
Aldinga — Italy: not among its largest Sellicks Hill — Italy: 1.3%
Singapore 0.9% / —
Aldinga — Singapore: 0.9% Sellicks Hill — Singapore: not among its largest
Netherlands 0.9% / —
Aldinga — Netherlands: 0.9% Sellicks Hill — Netherlands: not among its largest

Bars are drawn against the largest share shown (11.4%).

What people live in

Occupied private dwellings by structure, 2021 Census.

Aldinga 65.2% houses
Aldinga — Houses: 65.2% Aldinga — Flats / Apartments: 18.2% Aldinga — Townhouses: 16.6%
Sellicks Hill 97.3% houses
Sellicks Hill — Houses: 97.3% Sellicks Hill — Flats / Apartments: 2.7% Sellicks Hill — Townhouses: 0.0%
Houses Flats / Apartments Townhouses

Property market

Aldinga Sellicks Hill
Median house price $954,500 $1,465,000
Median unit price $475,000 —
Median land price $780,000 —

Zoning mix

Sellicks Hill has more land zoned for conservation (28% vs 0%).

Aldinga Sellicks Hill
Rural and farming 82% 72%
Environmental 0% 28%
Residential 10% 0%
Parks and recreation 5% 0%
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

Aldinga Sellicks Hill
New dwellings approved 1,367
across Onkaparinga
same for both
Approvals change year on year +58%
same for both

Ranking within SA

Aldinga Sellicks Hill
House price Higher than 27% of SA —
Income Higher than 22% of SA Higher than 72% of SA
Schools —
same for both
Walkability Higher than 84% of SA Higher than 71% of SA
Affordability Higher than 33% of SA —
EV adoption Higher than 69% of SA Higher than 60% of SA
NBN connectivity Higher than 95% of SA Higher than 71% of SA

Liveability

Aldinga is more walkable (60 vs 18).

Aldinga Sellicks Hill
Grade C —
Score 48/100 —
Socio-economic band mid-range socio-economic
decile 5/10
 advantaged area
decile 7/10

Risk profile

Sellicks Hill carries more bushfire risk (36 vs 0); Aldinga carries more crime risk (88 vs 52).

Aldinga Sellicks Hill
Bushfire None
0/100
 Low
36/100
Crime High
88/100
 Moderate
52/100
Flood Low
31/100
 —
Coastal erosion None
0/100
 Low
31/100
Aircraft noise None
0/100
same for both
Industrial facilities nearby 2
within 5 km
same for both

Schools

Aldinga Sellicks Hill
Inside the suburb 1 0
Rated above peers 0
same for both
Rated at peers 0
same for both
Rated below peers 0
same for both

Schools in Aldinga

  • Cardijn College - Galilee Campus Catholic · Combined

Schools in Sellicks Hill

No schools recorded inside this suburb's boundary. Children here will be zoned to schools nearby.

Amenities in the suburb

Aldinga Sellicks Hill
Supermarkets 1 0
Cafes & restaurants 3 0
Parks & reserves 1 0
Childcare 3 0
GPs 1 0
Pharmacies 1 0
Fuel stations 1 0
Waterways 2 1

Mobility

Sellicks Hill sits further from the CBD (54.3 km vs 43.6 km).

Aldinga Sellicks Hill
Walkability score 60/100 18/100
Distance to Adelaide 43.6 km 54.3 km
+25% vs other
Drive time (normal traffic) 42 min 52 min
Electric vehicle share 0.8%
postcode 5173
 0.6%
postcode 5174
Rooftop solar per 100 dwellings 67
postcode 5173
 69
postcode 5174

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.

Aldinga Sellicks Hill
Car (driver) 67.7% / 62.6%
Aldinga — Car (driver): 67.7% Sellicks Hill — Car (driver): 62.6%
Worked from Home 14.5% / 24.5%
Aldinga — Worked from Home: 14.5% Sellicks Hill — Worked from Home: 24.5%
Walked Only 6.0% / 8.2%
Aldinga — Walked Only: 6.0% Sellicks Hill — Walked Only: 8.2%
Car (passenger) 3.5% / 4.8%
Aldinga — Car (passenger): 3.5% Sellicks Hill — Car (passenger): 4.8%
Train 6.4% / —
Aldinga — Train: 6.4% Sellicks Hill — Train: not among its largest

Bars are drawn against the largest share shown (67.7%).

Setting

Aldinga Sellicks Hill
Elevation 32 m
above sea level, at the suburb centre
 124 m
above sea level, at the suburb centre
Distance to the ocean 2.4 km
same for both

NBN connectivity

Aldinga Sellicks Hill
Connectivity score 86/100 36/100
Most common technology Fibre to the premises Fixed wireless
Full-fibre (FTTP) share 80%
362 premises
 9%
162 premises

Climate

Aldinga Sellicks Hill
Annual rainfall 786 mm
same for both
Summer max (Jan) —
same for both
Winter min (Jul) —
same for both

Air quality (annual mean)

Aldinga Sellicks Hill
PM2.5 —
same for both
PM10 19.5 µg/m³
same for both
NO₂ 0.34 pphm
same for both

Council rates

Aldinga Sellicks Hill
Average residential rate $2,008/yr
same for both
Council Onkaparinga
same for both

Federal electorate

Aldinga Sellicks Hill
Division Mayo
same for both
Member Rebekha Sharkie
same for both
Party Centre Alliance
same for both

First Home Owner Grant

Aldinga Sellicks Hill
Grant amount $15,000
same for both
Property price cap —
same for both
Eligibility New
same for both

Tags

Aldinga

Coastal Outer Quiet

Sellicks Hill

Coastal Outer Quiet

More comparisons

Other comparisons with Aldinga

Aldinga vs Aldinga Beach Aldinga vs Port Willunga Aldinga vs Maslin Beach Aldinga vs Whites Valley Aldinga vs Tatachilla

Other comparisons with Sellicks Hill

Sellicks Hill vs Aldinga Beach Sellicks Hill vs Sellicks Beach Sellicks Hill vs Myponga Sellicks Hill vs Willunga South Sellicks Hill vs Whites Valley Sellicks Hill vs Pages Flat
Full data on Aldinga Full data on Sellicks Hill
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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.

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