Aldinga Beach vs Sellicks Hill

Aldinga Beach is the younger of the two, with a median age of 39 against 51 in Sellicks Hill. In both, most households own their home and the large majority of homes are detached houses. In Sellicks Hill, most households are couple families. Houses cost more in Sellicks Hill: a median of $1.47 million, against $847,000 in Aldinga Beach, though rent is higher in Aldinga Beach. Aldinga Beach is closer to the city centre: 47.9 km, against 54.3 km. On these figures, Aldinga Beach tends to suit people living alone, families with children, 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

Aldinga Beach

ahead on 3 of the 6 things we measure here

  • has more childcare (11 vs 0)
  • has more parks and reserves (6 vs 0)
  • has more schools inside the suburb (2 vs 0)
  • But Sellicks Hill is already more of a family suburb (69% vs 61%)

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

First-home buyers

Aldinga Beach

ahead on the one thing that separates them

  • has cheaper houses ($847,000 vs $1,465,000)

Weighs house prices and mortgage stress.

Renters

Sellicks Hill

ahead on 2 of the 3 things we measure here

  • leaves renters under less rental stress (16% vs 25%)
  • has cheaper rent ($280/wk vs $320/wk)
  • But Aldinga Beach has a bigger rental market to choose from (29% vs 11%)

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

Commuting to the city

Aldinga Beach

ahead on 2 of the 3 things we measure here

  • sits closer to the CBD (47.9 km vs 54.3 km)
  • has a shorter drive in (47 min vs 52 min)

Weighs distance, drive time, and walkability.

Downsizers and retirees

Aldinga Beach

ahead on the one thing that separates them

  • has more GPs (4 vs 0)

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

Investors

Too close to call

Nothing among the 1 things we measure here separates them by enough to be worth acting on.

Weighs population growth.

Where they sit

Aldinga Beach 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 Beach 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 Beach Sellicks Hill
Walkability 12 / 18
Aldinga Beach — Walkability: 12/100 Sellicks Hill — Walkability: 18/100
Safety 51 / 48
Aldinga Beach — Safety: 51/100 Sellicks Hill — Safety: 48/100
Low fire risk 70 / 64
Aldinga Beach — Low fire risk: 70/100 Sellicks Hill — Low fire risk: 64/100

Demographics

Aldinga Beach has more residents (10,667 vs 299); Sellicks Hill has higher household incomes ($93,184 vs $67,444).

Aldinga Beach Sellicks Hill
Population 10,667
+97% vs other
 299
Population trend (2016 → 2021) +1.0% -2.3%
Median age 39 51
Median household income $67,444/yr $93,184/yr
+38% vs other
Median weekly rent $320/wk
+12% vs other
 $280/wk

Age profile

Share of residents in each band, 2021 Census.

Aldinga Beach Sellicks Hill
0-4 5.7% / 3.0%
Aldinga Beach — 0-4: 5.7% Sellicks Hill — 0-4: 3.0%
5-14 15.1% / 9.4%
Aldinga Beach — 5-14: 15.1% Sellicks Hill — 5-14: 9.4%
15-19 6.4% / 4.3%
Aldinga Beach — 15-19: 6.4% Sellicks Hill — 15-19: 4.3%
20-24 5.3% / 9.4%
Aldinga Beach — 20-24: 5.3% Sellicks Hill — 20-24: 9.4%
25-34 11.2% / 6.7%
Aldinga Beach — 25-34: 11.2% Sellicks Hill — 25-34: 6.7%
35-44 13.6% / 7.7%
Aldinga Beach — 35-44: 13.6% Sellicks Hill — 35-44: 7.7%
45-54 12.5% / 14.7%
Aldinga Beach — 45-54: 12.5% Sellicks Hill — 45-54: 14.7%
55-64 11.9% / 21.7%
Aldinga Beach — 55-64: 11.9% Sellicks Hill — 55-64: 21.7%
65-74 10.4% / 18.7%
Aldinga Beach — 65-74: 10.4% Sellicks Hill — 65-74: 18.7%
75-84 5.9% / 4.3%
Aldinga Beach — 75-84: 5.9% Sellicks Hill — 75-84: 4.3%
85+ 2.0% / —
Aldinga Beach — 85+: 2.0% 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 Beach 38.6% couple families
Aldinga Beach — Couple Families: 38.6% Aldinga Beach — Lone Person: 34.5% Aldinga Beach — One Parent Families: 22.2% Aldinga Beach — Group Household: 3.7% Aldinga Beach — Other Families: 1.0%
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% Sellicks Hill — Other Families: 0.0%
Couple Families Lone Person One Parent Families Group Household Other Families

Who owns and who rents

Occupied private dwellings by tenure, 2021 Census.

Aldinga Beach 28.7% renting
Aldinga Beach — Owned Outright: 27.2% Aldinga Beach — Mortgage: 44.2% Aldinga Beach — Renting: 28.7%
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 Beach Sellicks Hill
Certificate III & IV 19.5% / 18.7%
Aldinga Beach — Certificate III & IV: 19.5% Sellicks Hill — Certificate III & IV: 18.7%
Bachelor Degree 7.4% / 12.4%
Aldinga Beach — Bachelor Degree: 7.4% Sellicks Hill — Bachelor Degree: 12.4%
Advanced Diploma / Diploma 7.0% / 6.7%
Aldinga Beach — Advanced Diploma / Diploma: 7.0% Sellicks Hill — Advanced Diploma / Diploma: 6.7%
Postgraduate Degree 1.8% / 2.0%
Aldinga Beach — Postgraduate Degree: 1.8% Sellicks Hill — Postgraduate Degree: 2.0%
Graduate Diploma / Certificate 1.5% / 1.7%
Aldinga Beach — Graduate Diploma / Certificate: 1.5% Sellicks Hill — Graduate Diploma / Certificate: 1.7%

Bars are drawn against the largest share shown (19.5%).

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.

Aldinga Beach Sellicks Hill
England 10.7% / 8.7%
Aldinga Beach — England: 10.7% Sellicks Hill — England: 8.7%
New Zealand 1.3% / 1.0%
Aldinga Beach — New Zealand: 1.3% Sellicks Hill — New Zealand: 1.0%
Greece — / 2.3%
Aldinga Beach — Greece: not among its largest Sellicks Hill — Greece: 2.3%
Italy 0.2% / 1.3%
Aldinga Beach — Italy: 0.2% Sellicks Hill — Italy: 1.3%
China — / 1.3%
Aldinga Beach — China: not among its largest Sellicks Hill — China: 1.3%
Scotland 1.2% / —
Aldinga Beach — Scotland: 1.2% Sellicks Hill — Scotland: not among its largest
South Africa 0.7% / —
Aldinga Beach — South Africa: 0.7% Sellicks Hill — South Africa: not among its largest
Netherlands 0.6% / —
Aldinga Beach — Netherlands: 0.6% Sellicks Hill — Netherlands: not among its largest

Bars are drawn against the largest share shown (10.7%).

What people live in

Occupied private dwellings by structure, 2021 Census.

Aldinga Beach 90.9% houses
Aldinga Beach — Houses: 90.9% Aldinga Beach — Townhouses: 7.7% Aldinga Beach — Flats / Apartments: 1.4%
Sellicks Hill 97.3% houses
Sellicks Hill — Houses: 97.3% Sellicks Hill — Townhouses: 0.0% Sellicks Hill — Flats / Apartments: 2.7%
Houses Townhouses Flats / Apartments

Property market

Aldinga Beach Sellicks Hill
Median house price $847,000 $1,465,000
Median unit price $615,000 —
Median land price $753,750 —
Typical days to sell (houses) 19 days
from 120 sales
 —

Zoning mix

Sellicks Hill has more rural and farming land (72% vs 30%).

Aldinga Beach Sellicks Hill
Rural and farming 30% 72%
Residential 36% 0%
Environmental 30% 28%
Industrial 2% 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 Beach Sellicks Hill
New dwellings approved 1,367
across Onkaparinga
same for both
Approvals change year on year +58%
same for both

Gross rental yield

Gross — before strata, rates, management, insurance and vacancy. From median advertised rents and median asking prices over the last 6 months. How we calculate.

Aldinga Beach Sellicks Hill
Houses 4.0%
$640/wk on $840K
 —
Units 3.7%
$460/wk on $639K
 —

Ranking within SA

Aldinga Beach Sellicks Hill
House price Higher than 20% of SA —
Income Higher than 36% of SA Higher than 72% of SA
Schools —
same for both
Walkability Higher than 66% of SA Higher than 71% of SA
Affordability Higher than 61% of SA —
EV adoption Higher than 69% of SA Higher than 60% of SA
NBN connectivity Higher than 99% of SA Higher than 71% of SA
Rental yield (houses) Higher than 53% of SA —
Rental yield (units) Higher than 7% of SA —

Liveability

Aldinga Beach Sellicks Hill
Grade D —
Score 28/100 —
Socio-economic band below-average income
decile 2/10
 advantaged area
decile 7/10

Risk profile

Aldinga Beach Sellicks Hill
Bushfire Low
30/100
 Low
36/100
Crime Moderate
49/100
 Moderate
52/100
Flood Moderate
63/100
 —
Coastal erosion High
77/100
 Low
31/100
Aircraft noise None
0/100
same for both
Industrial facilities nearby 1
within 5 km
 2
within 5 km

Schools

Aldinga Beach Sellicks Hill
Inside the suburb 2 0
Rated above peers 0
same for both
Rated at peers 1 0
Rated below peers 0
same for both

Schools in Aldinga Beach

  • Aldinga Beach Primary School Government · Primary at peers
  • Southern Vales Christian College - Aldinga Campus Independent · 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 Beach Sellicks Hill
Supermarkets 2 0
Cafes & restaurants 1 0
Parks & reserves 6 0
Childcare 11 0
GPs 4 0
Pharmacies 2 0
Police stations 1 0
Banks & Bank@Post 2 0
Waterways 0 1

Mobility

Sellicks Hill sits further from the CBD (54.3 km vs 47.9 km).

Aldinga Beach Sellicks Hill
Walkability score 12/100 18/100
Distance to Adelaide 47.9 km 54.3 km
+13% vs other
Drive time (normal traffic) 47 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 Beach Sellicks Hill
Car (driver) 78.7% / 62.6%
Aldinga Beach — Car (driver): 78.7% Sellicks Hill — Car (driver): 62.6%
Worked from Home 11.1% / 24.5%
Aldinga Beach — Worked from Home: 11.1% Sellicks Hill — Worked from Home: 24.5%
Walked Only 1.8% / 8.2%
Aldinga Beach — Walked Only: 1.8% Sellicks Hill — Walked Only: 8.2%
Car (passenger) 4.5% / 4.8%
Aldinga Beach — Car (passenger): 4.5% Sellicks Hill — Car (passenger): 4.8%
Train 2.3% / —
Aldinga Beach — Train: 2.3% Sellicks Hill — Train: not among its largest

Bars are drawn against the largest share shown (78.7%).

Setting

Aldinga Beach Sellicks Hill
Elevation 17 m
above sea level, at the suburb centre
 124 m
above sea level, at the suburb centre
Distance to the ocean 1.2 km 2.4 km

NBN connectivity

Aldinga Beach Sellicks Hill
Connectivity score 98/100 36/100
Most common technology Fibre to the premises Fixed wireless
Full-fibre (FTTP) share 95%
5,588 premises
 9%
162 premises

Climate

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

Federal electorate

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

First Home Owner Grant

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

Tags

Aldinga Beach

Coastal Large Blocks Outer

Sellicks Hill

Coastal Outer Quiet

More comparisons

Other comparisons with Aldinga Beach

Aldinga Beach vs Sellicks Beach Aldinga Beach vs Port Willunga Aldinga Beach vs Aldinga

Other comparisons with Sellicks Hill

Sellicks Hill vs Sellicks Beach Sellicks Hill vs Myponga Sellicks Hill vs Aldinga Sellicks Hill vs Willunga South Sellicks Hill vs Whites Valley Sellicks Hill vs Pages Flat
Full data on Aldinga Beach Full data on Sellicks Hill
Unlock full address-level data — $29/month

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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