IRSAD
Relative Socio-economic Advantage and Disadvantage
Score 1,082
Measures relative socio-economic advantage and disadvantage.
Within AustraliaDecile 10 of 10
Within South AustraliaDecile 10 of 10
For state-level context, explore the South Australia economy.
Housing
Thorngate
South Australia · Census 2021
$2.15M+53.6% yrmedian house · Sept 2025
Thorngate is a leafy residential suburb of Prospect.
Median house price
$2.15M92nd pctile
of 426 priced SA suburbs
Household income
$3,125/wk98th pctile
of 1,632 SA suburbs
Median house price
Rolling median of settled transfers, state Valuer-General open data (CC BY 4.0). South Australia average of suburb medians: $1.2M.
How it compares
Median house price92nd percentile
<$358k426 priced suburbs$2.9M+
Household income / wk98th percentile
<$450ABS Census 2021$3,749+
Percentiles rank this suburb against South Australia suburbs that carry the metric — never across states, and never against suburbs where it is missing. The state and national figures are the average of the latest suburb medians in that area, not a transaction-weighted median.
People & housing
Population
180
Median age
47 yrs
Income / person / wk
$929
Household income / wk
$3,125
▲ 103% vs SA
Median rent / wk
$380
Mortgage / month
$2,763
Socio-economic profile
IRSD
Relative Socio-economic Disadvantage
Score 1,063
Measures relative socio-economic disadvantage only; a higher score means less disadvantage.
Within AustraliaDecile 9 of 10
Within South AustraliaDecile 9 of 10
IER
Economic Resources
Score 999
Measures access to economic resources, including income, housing costs and assets.
Within AustraliaDecile 4 of 10
Within South AustraliaDecile 5 of 10
IEO
Education and Occupation
Score 1,122
Measures relative education and occupation characteristics.
Within AustraliaDecile 10 of 10
Within South AustraliaDecile 10 of 10
Scores are standardised across Australia to a mean of 1,000 and a standard deviation of 100. Deciles run from 1 (most disadvantaged) to 10 (least disadvantaged).
Source: ABS SEIFA 2021 (CC BY 4.0).
Terrain & hazard exposure
Median elevation
56 m
range 54–57 m
Land below 5 m
0%
0% below 2 m
Shares are the proportion of the suburb's land area. Land where Landsat saw water in at least 1% of clear passes since 1987, excluding permanent water and filtered by DEA's confidence layer. Satellites miss flood peaks, so this is a floor, not a risk estimate; dense high-rise cores can still register tower shadow as water. Elevation is orthometric height from a 30 m model; no hydrology or drainage is modelled. No open statutory flood or bushfire layer is published for South Australia yet.
Culture & community
- Dominant religion
- No religion · 29%
- Top language at home
- Greek · 4%
- No religion
- 29%
- Born overseas
- 33%
- English only at home
- 66%
Schools by sector
- Nearest secondary
- 0.3 km
School sector & type: ACARA (Australian Curriculum, Assessment and Reporting Authority), School Location dataset.
Local council
- Council (LGA)
- Prospect
- Population / area
- 19,630 · 8 km²
- Density
- 2,517/km²
- Federal grants
- $909k/yr · $46/resident
Council boundary: ABS ASGS LGA 2024. Federal grants: Financial Assistance Grants, Dept of Infrastructure. All CC BY 4.0.
Representation
- Federal division
- Adelaide
- Federal MP
- Steve Georganas (ALP)
- Two-party-preferred
- Labor 69% 2PP
- State electorate
- Adelaide
- State MP
- Lucy Hood (ALP)
Comparable suburbs
Closest by median house price across SA.
Similar suburbs
Closest demographic & amenity profile, nationally.
Sources: ABS ASGS boundaries (CC BY 4.0); ABS Census 2021 (CC BY 4.0); South Australia Valuer-General settled transfers (CC BY 4.0); Australian Electoral Commission (CC BY 4.0); Geoscience Australia 1 Second DEM-S (CC BY 4.0); DEA Water Observations Statistics, Geoscience Australia (CC BY 4.0); Wikipedia state-member tables (CC BY-SA 4.0). Not financial advice.