IRSAD
Relative Socio-economic Advantage and Disadvantage
Score 1,111
Measures relative socio-economic advantage and disadvantage.
Within AustraliaDecile 10 of 10
Within New South WalesDecile 10 of 10
For state-level context, explore the New South Wales economy.
Housing
Great Mackerel Beach
New South Wales · Census 2021
$1.62M+11.7% yrmedian house · Dec 2024
Great Mackerel Beach is a coastal suburb.
Median house price
$1.62M78th pctile
of 2,433 priced NSW suburbs
Household income
$1,124/wk18th pctile
of 4,352 NSW suburbs
Median house price
Rolling median of settled transfers, state Valuer-General open data (CC BY 4.0). New South Wales average of suburb medians: $1.4M.
How it compares
Median house price78th percentile
<$169k2,433 priced suburbs$5.5M+
Household income / wk18th percentile
<$564ABS Census 2021$3,833+
Percentiles rank this suburb against New South Wales 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
50
Median age
57 yrs
Income / person / wk
$780
Household income / wk
$1,124
▼ 34% vs NSW
Median rent / wk
$350
Mortgage / month
$862
Socio-economic profile
IRSD
Relative Socio-economic Disadvantage
Score 1,095
Measures relative socio-economic disadvantage only; a higher score means less disadvantage.
Within AustraliaDecile 10 of 10
Within New South WalesDecile 10 of 10
IER
Economic Resources
Score 1,065
Measures access to economic resources, including income, housing costs and assets.
Within AustraliaDecile 8 of 10
Within New South WalesDecile 7 of 10
IEO
Education and Occupation
Score 1,143
Measures relative education and occupation characteristics.
Within AustraliaDecile 10 of 10
Within New South WalesDecile 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
3 m
range 0–8 m
Land below 5 m
80%
47% 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. A statutory planning-control boundary, not a flood extent, and it can lag the latest flood study. NSW councils have owned flood-map currency since July 2021, so the state layer may be older than a council's own study. Designated for development control; a designation, not a prediction of fire behaviour. Elevation is orthometric height from a 30 m model; no hydrology or drainage is modelled.
Culture & community
- Dominant religion
- No religion · 40%
- Top language at home
- English only
- No religion
- 40%
- Born overseas
- 17%
- English only at home
- 83%
Schools by sector
- Nearest secondary
- 5.3 km
School sector & type: ACARA (Australian Curriculum, Assessment and Reporting Authority), School Location dataset.
Representation
- Federal division
- Mackellar
- Federal MP
- Sophie Scamps (IND)
- Two-party-preferred
- Coalition 54% 2PP
- State electorate
- —
- State MP
- —
Comparable suburbs
Closest by median house price across NSW.
Similar suburbs
Closest demographic & amenity profile, nationally.
Sources: ABS ASGS boundaries (CC BY 4.0); ABS Census 2021 (CC BY 4.0); New South Wales 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); NSW Environmental Planning Instrument — Flood, NSW Department of Planning (CC BY 4.0); NSW Bush Fire Prone Land, NSW Rural Fire Service (CC BY 4.0). Not financial advice.