Tatachilla vs Aldinga

Tatachilla is the younger of the two, with a median age of 45 against 49 in Aldinga. In both, the large majority of households own their home and most homes are detached houses. In Tatachilla, most households are couple families. In Aldinga, about half of households are people living alone. On these figures, Tatachilla tends to suit couples, while Aldinga 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

Tatachilla

ahead on 3 of the 6 things we measure here

  • is already more of a family suburb (86% vs 45%)
  • has more separate houses rather than flats (99% vs 65%)
  • carries lower crime risk (71/100 vs 88/100)

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

First-home buyers

Tatachilla

ahead on the one thing that separates them

  • leaves households under less mortgage stress (23% vs 32%)

Weighs mortgage stress.

Renters

Aldinga

ahead on 2 of the 3 things we measure here

  • has a bigger rental market to choose from (16% vs 5%)
  • has cheaper rent ($255/wk vs $280/wk)
  • But Tatachilla leaves renters under less rental stress (14% vs 23%)

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

  • Tatachilla sits closer to the CBD (41.1 km vs 43.6 km)
  • Aldinga is more walkable (60/100 vs 0/100)

Weighs distance, drive time, and walkability.

Downsizers and retirees

Aldinga

ahead on 3 of the 5 things we measure here

  • is more walkable (60/100 vs 0/100)
  • has more units and townhouses to downsize into (35% vs 1%)
  • has more residents already 65 and over (25% vs 16%)
  • But Tatachilla carries lower crime risk (71/100 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 9.0%)

Weighs population growth.

Where they sit

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

Tatachilla Aldinga
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.

Tatachilla Aldinga
Walkability 0 / 60
Tatachilla — Walkability: 0/100 Aldinga — Walkability: 60/100
Safety 29 / 12
Tatachilla — Safety: 29/100 Aldinga — Safety: 12/100
Low fire risk 100 / 100
Tatachilla — Low fire risk: 100/100 Aldinga — Low fire risk: 100/100

Demographics

Aldinga has more residents (764 vs 231); Tatachilla has higher household incomes ($107,900 vs $57,304).

Tatachilla Aldinga
Population 231 764
+231% vs other
Population trend (2016 → 2021) +9.0% +33.3%
Median age 45 49
Median household income $107,900/yr
+47% vs other
 $57,304/yr
Median weekly rent $280/wk
+9% vs other
 $255/wk

Age profile

Share of residents in each band, 2021 Census.

Tatachilla Aldinga
0-4 4.8% / 3.9%
Tatachilla — 0-4: 4.8% Aldinga — 0-4: 3.9%
5-14 16.0% / 13.5%
Tatachilla — 5-14: 16.0% Aldinga — 5-14: 13.5%
15-19 7.8% / 5.6%
Tatachilla — 15-19: 7.8% Aldinga — 15-19: 5.6%
20-24 5.2% / 2.1%
Tatachilla — 20-24: 5.2% Aldinga — 20-24: 2.1%
25-34 4.8% / 7.1%
Tatachilla — 25-34: 4.8% Aldinga — 25-34: 7.1%
35-44 11.7% / 11.1%
Tatachilla — 35-44: 11.7% Aldinga — 35-44: 11.1%
45-54 19.9% / 16.2%
Tatachilla — 45-54: 19.9% Aldinga — 45-54: 16.2%
55-64 15.2% / 15.6%
Tatachilla — 55-64: 15.2% Aldinga — 55-64: 15.6%
65-74 8.7% / 17.5%
Tatachilla — 65-74: 8.7% Aldinga — 65-74: 17.5%
75-84 7.4% / 6.9%
Tatachilla — 75-84: 7.4% Aldinga — 75-84: 6.9%
85+ — / 0.4%
Tatachilla — 85+: not among its largest Aldinga — 85+: 0.4%

Bars are drawn against the largest share shown (19.9%).

Who lives together

Household composition, 2021 Census.

Tatachilla 65.5% couple families
Tatachilla — Couple Families: 65.5% Tatachilla — Lone Person: 9.1% Tatachilla — One Parent Families: 20.0% Tatachilla — Other Families: 5.5% Tatachilla — Group Household: 0.0%
Aldinga 29.8% couple families
Aldinga — Couple Families: 29.8% Aldinga — Lone Person: 52.9% Aldinga — One Parent Families: 15.1% Aldinga — Other Families: 0.0% Aldinga — Group Household: 2.1%
Couple Families Lone Person One Parent Families Other Families Group Household

Who owns and who rents

Occupied private dwellings by tenure, 2021 Census.

Tatachilla 5.2% renting
Tatachilla — Owned Outright: 44.2% Tatachilla — Mortgage: 50.6% Tatachilla — Renting: 5.2%
Aldinga 15.5% renting
Aldinga — Owned Outright: 47.2% Aldinga — Mortgage: 37.2% Aldinga — Renting: 15.5%
Owned outright Mortgage Renting

Qualifications

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

Tatachilla Aldinga
Certificate III & IV 19.9% / 13.2%
Tatachilla — Certificate III & IV: 19.9% Aldinga — Certificate III & IV: 13.2%
Bachelor Degree 13.9% / 14.1%
Tatachilla — Bachelor Degree: 13.9% Aldinga — Bachelor Degree: 14.1%
Advanced Diploma / Diploma 10.0% / 7.9%
Tatachilla — Advanced Diploma / Diploma: 10.0% Aldinga — Advanced Diploma / Diploma: 7.9%
Postgraduate Degree 4.3% / 5.6%
Tatachilla — Postgraduate Degree: 4.3% Aldinga — Postgraduate Degree: 5.6%
Graduate Diploma / Certificate 3.5% / 3.0%
Tatachilla — Graduate Diploma / Certificate: 3.5% Aldinga — Graduate Diploma / Certificate: 3.0%

Bars are drawn against the largest share shown (19.9%).

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.

Tatachilla Aldinga
England 8.7% / 11.4%
Tatachilla — England: 8.7% Aldinga — England: 11.4%
Thailand 2.2% / —
Tatachilla — Thailand: 2.2% Aldinga — Thailand: not among its largest
France 1.3% / —
Tatachilla — France: 1.3% Aldinga — France: not among its largest
Germany — / 1.0%
Tatachilla — Germany: not among its largest Aldinga — Germany: 1.0%
New Zealand — / 0.9%
Tatachilla — New Zealand: not among its largest Aldinga — New Zealand: 0.9%
Singapore — / 0.9%
Tatachilla — Singapore: not among its largest Aldinga — Singapore: 0.9%
Netherlands — / 0.9%
Tatachilla — Netherlands: not among its largest Aldinga — Netherlands: 0.9%

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

What people live in

Occupied private dwellings by structure, 2021 Census.

Tatachilla 98.8% houses
Tatachilla — Houses: 98.8% Tatachilla — Flats / Apartments: 1.2% Tatachilla — Townhouses: 0.0%
Aldinga 65.2% houses
Aldinga — Houses: 65.2% Aldinga — Flats / Apartments: 18.2% Aldinga — Townhouses: 16.6%
Houses Flats / Apartments Townhouses

Property market

Tatachilla Aldinga
Median house price — $954,500
Median unit price — $475,000
Median land price — $780,000

Zoning mix

Tatachilla Aldinga
Rural and farming 91% 82%
Residential 0% 10%
Industrial 9% 0%
Parks and recreation 0% 5%
Commercial 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

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

Ranking within SA

Tatachilla Aldinga
House price — Higher than 27% of SA
Income — Higher than 22% of SA
Schools —
same for both
Walkability Higher than 40% of SA Higher than 84% of SA
Affordability — Higher than 33% of SA
EV adoption Higher than 68% of SA Higher than 69% of SA
NBN connectivity Higher than 71% of SA Higher than 95% of SA

Liveability

Aldinga is more walkable (60 vs 0).

Tatachilla Aldinga
Grade — C
Score — 48/100
Socio-economic band very advantaged area
decile 9/10
 mid-range socio-economic
decile 5/10

Risk profile

Aldinga carries more crime risk (88 vs 71).

Tatachilla Aldinga
Bushfire None
0/100
same for both
Crime High
71/100
 High
88/100
Flood — Low
31/100
Coastal erosion None
0/100
same for both
Aircraft noise None
0/100
same for both
Industrial facilities nearby 11
within 5 km
 2
within 5 km

Schools

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

Schools in Tatachilla

  • Tatachilla Lutheran College Independent · Combined at peers

Schools in Aldinga

  • Cardijn College - Galilee Campus Catholic · Combined

Amenities in the suburb

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

Mobility

Aldinga sits further from the CBD (43.6 km vs 41.1 km).

Tatachilla Aldinga
Walkability score 0/100 60/100
Distance to Adelaide 41.1 km 43.6 km
+6% vs other
Drive time (normal traffic) 41 min 42 min
Electric vehicle share 0.7%
postcode 5171
 0.8%
postcode 5173
Rooftop solar per 100 dwellings 90
postcode 5171
 67
postcode 5173

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.

Tatachilla Aldinga
Car (driver) 72.8% / 67.7%
Tatachilla — Car (driver): 72.8% Aldinga — Car (driver): 67.7%
Worked from Home 20.2% / 14.5%
Tatachilla — Worked from Home: 20.2% Aldinga — Worked from Home: 14.5%
Walked Only 2.6% / 6.0%
Tatachilla — Walked Only: 2.6% Aldinga — Walked Only: 6.0%
Car (passenger) 4.4% / 3.5%
Tatachilla — Car (passenger): 4.4% Aldinga — Car (passenger): 3.5%
Train — / 6.4%
Tatachilla — Train: not among its largest Aldinga — Train: 6.4%

Bars are drawn against the largest share shown (72.8%).

Setting

Tatachilla Aldinga
Elevation 71 m
above sea level, at the suburb centre
 32 m
above sea level, at the suburb centre
Distance to the ocean 3.6 km
4.4 km to a named beach
 2.4 km

NBN connectivity

Tatachilla Aldinga
Connectivity score 39/100 86/100
Most common technology Fixed wireless Fibre to the premises
Full-fibre (FTTP) share 12%
97 premises
 80%
362 premises

Climate

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

Air quality (annual mean)

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

Council rates

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

Federal electorate

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

First Home Owner Grant

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

Tags

Tatachilla

Outer

Aldinga

Coastal Outer Quiet

More comparisons

Other comparisons with Tatachilla

Tatachilla vs McLaren Vale Tatachilla vs Willunga Tatachilla vs Maslin Beach Tatachilla vs Whites Valley

Other comparisons with Aldinga

Aldinga vs Aldinga Beach Aldinga vs Port Willunga Aldinga vs Maslin Beach Aldinga vs Whites Valley Aldinga vs Sellicks Hill
Full data on Tatachilla Full data on Aldinga
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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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