IRSAD
Relative Socio-economic Advantage and Disadvantage
Score 1,027
Measures relative socio-economic advantage and disadvantage.
Within AustraliaDecile 8 of 10
Within South AustraliaDecile 8 of 10
For state-level context, explore the South Australia economy.
Housing
Ob Flat
South Australia · Census 2021
Median house price not tracked for this suburb
Ob Flat is a leafy residential suburb of Grant.
Median house price
No median price series for Ob Flat yet.
Valuer-General pricing is unavailable for this suburb. South Australia average of suburb medians: $1.2M.
How it compares
Household income / wk86th 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
470
Median age
48 yrs
Income / person / wk
$860
Household income / wk
$2,104
▲ 37% vs SA
Median rent / wk
$250
Mortgage / month
$1,625
Socio-economic profile
IRSD
Relative Socio-economic Disadvantage
Score 1,076
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 1,099
Measures access to economic resources, including income, housing costs and assets.
Within AustraliaDecile 10 of 10
Within South AustraliaDecile 10 of 10
IEO
Education and Occupation
Score 976
Measures relative education and occupation characteristics.
Within AustraliaDecile 5 of 10
Within South AustraliaDecile 5 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
38 m
range 24–77 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 · 47%
- Top language at home
- Greek · 1%
- No religion
- 47%
- Born overseas
- 11%
- English only at home
- 95%
Schools by sector
- Nearest secondary
- 5.1 km
School sector & type: ACARA (Australian Curriculum, Assessment and Reporting Authority), School Location dataset.
Local council
- Council (LGA)
- Grant
- Population / area
- 9,952 · 1,898 km²
- Density
- 5/km²
- Federal grants
- $2.24M/yr · $225/resident
Council boundary: ABS ASGS LGA 2024. Federal grants: Financial Assistance Grants, Dept of Infrastructure. All CC BY 4.0.
Representation
- Federal division
- Barker
- Federal MP
- Tony Pasin (LP)
- Two-party-preferred
- Coalition 63% 2PP
- State electorate
- Mount Gambier
- State MP
- Troy Bell (IND)
Similar suburbs
Closest demographic & amenity profile, nationally.
Sources: ABS ASGS boundaries (CC BY 4.0); ABS Census 2021 (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.