IRSAD
Relative Socio-economic Advantage and Disadvantage
Score 973
Measures relative socio-economic advantage and disadvantage.
Within AustraliaDecile 5 of 10
Within South AustraliaDecile 5 of 10
For state-level context, explore the South Australia economy.
Housing
Lock
South Australia · Census 2021
Median house price not tracked for this suburb
Lock is a bushland suburb of Elliston.
Household income
$1,125/wk25th pctile
of 1,632 SA suburbs
Amenity score
23/10075th pctile
of 711 rated SA suburbs
Median house price
No Valuer-General median for Lock.
South Australia's open Valuer-General suburb median feed covers metropolitan Adelaide only. We have no median for Lock from this feed. ABS median established-house price, Greater Adelaide: $980k; Rest of SA: $595k.
How it compares
Household income / wk25th 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. Price references are ABS median established-house transfer prices for the Mar 2026 quarter (CC BY 4.0); the suburb figure is a Valuer-General median over a different window, so read the gap as indicative. Income references are the Census 2021 median of the middle suburb in South Australia and nationally, not a household-weighted median.
People & housing
Population
253
Median age
38 yrs
Income / person / wk
$729
Household income / wk
$1,125
▼ 22% vs SA
Median rent / wk
$120
Mortgage / month
$512
Who lives here
- Couples with children
- 22%
- −6 pts vs SA
- Living alone
- 38%
- +9 pts vs SA
- Unemployment
- 5%
- level with SA
- In the labour force
- 65%
- +5 pts vs SA
- Bachelor degree or higher
- 5%
- −18 pts vs SA
- Earning $1–$499 a week
- 20%
- −7 pts vs SA
- Earning $2,000+ a week
- 6%
- −3 pts vs SA
Households for the family mix, residents aged 15+ for work, education and income; unemployment is a share of the labour force. SA figures weight each suburb by its dwellings or residents. ABS Census 2021 (CC BY 4.0). Withheld for very small populations — under 100 residents, or under 50 dwellings, households or workers for the shares that count those.
Housing stock
88 occupied private dwellings
- Separate house 100%
- Flat or apartment 0%
SA: 78% separate houses · 7% flats & apartments
- Owned outright 47%
- Mortgaged 20%
- Rented 26%
- Other & not stated 7%
SA: 32% owned outright · 36% mortgaged · 28% rented
ABS Census 2021 (CC BY 4.0). Withheld for very small populations — under 100 residents, or under 50 dwellings, households or workers for the shares that count those.
Socio-economic profile
IRSD
Relative Socio-economic Disadvantage
Score 976
Measures relative socio-economic disadvantage only; a higher score means less disadvantage.
Within AustraliaDecile 3 of 10
Within South AustraliaDecile 3 of 10
IER
Economic Resources
Score 976
Measures access to economic resources, including income, housing costs and assets.
Within AustraliaDecile 3 of 10
Within South AustraliaDecile 4 of 10
IEO
Education and Occupation
Score 1,021
Measures relative education and occupation characteristics.
Within AustraliaDecile 8 of 10
Within South AustraliaDecile 8 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
97 m
range 61–166 m
Land below 5 m
0%
0% below 2 m
Shares are the proportion of the suburb's land area; where part of a suburb is unmapped, only its mapped land counts, so the share is a floor. 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. Not yet assessed: the Code applies its precautionary Evidence Required overlay to most of this suburb. Designated for development control; a designation, not a prediction of fire behaviour. Covers the Code's High, Medium, General and Urban Interface bushfire overlays. Land under its precautionary Regional and Outback overlays has not been assessed and is shown as no statutory layer. Elevation is orthometric height from a 30 m model; no hydrology or drainage is modelled.
Planning & zoning
Zoning mix (share of the suburb's land)
Show on map →- Rural100%
- Industrial & employment0.2%
- Low-density residential<0.1%
- Open space & recreation<0.1%
- Centres & mixed use<0.1%
- Conservation<0.1%
- Infrastructure & special purpose<0.1%
In a heritage area
0%
conservation area / Heritage Overlay
Show on map →Listed heritage places
0
local & State places in the Code
Planning instrument: Planning and Design Code. Zones are grouped into ten families so states compare; the council's own scheme is the authority for any one lot. Listed-place counts follow each state's own list, so they do not compare across states. Source: SA Planning and Design Code zones; SA Code heritage & character overlays.
Local amenities
Schools
1
Supermarkets
1
Pubs & bars
1
Parks
1
Libraries
1
GP clinics
1
Pharmacies
0
Hospitals
0
Nearest supermarket
2.5 km
Nearest train
44.4 km
Nearest hospital
64.8 km
Distance to coast
61 km
Amenity counts via © OpenStreetMap contributors (ODbL) & Geoscience Australia HealthDirect (CC BY 4.0). Distance to coast derived from ABS state boundaries (CC BY 4.0).
Culture & community
- Dominant religion
- No religion · 38%
- Top language at home
- English only
- No religion
- 38%
- Born overseas
- 6%
- English only at home
- 98%
Schools by sector
- Government / Catholic / Indep.
- 1 / 0 / 0
- Primary / Secondary
- 1 / 1
- Nearest secondary
- 2.5 km
School sector & type: ACARA (Australian Curriculum, Assessment and Reporting Authority), School Location dataset.
Local council
- Council (LGA)
- Elliston
- Population
- 1,057 (2025) · +0.3% in a year
- Area / density
- 6,742 km² · 0/km²
- Council medians (2021)
- age 44 · $1,135/wk household income · $150/wk rent
- Council-wide house median (2023-24)
- $320k
- Federal grants
- $1.55M in 2025-26 · $1,464/resident
- Website
- elliston.sa.gov.au
Council boundaries and the suburb split: ABS ASGS LGA 2024, allocated by 2021 mesh block and weighted by Census 2021 residents. Population: ABS Estimated Resident Population 2025. Medians: ABS Census 2021. House median: ABS Data by Region, established-house transfers across the whole council, financial year 2023-24. Federal grants: Financial Assistance Grants, Dept of Infrastructure. ABS and Dept of Infrastructure data CC BY 4.0; council website from Wikidata (CC0).
Representation
- Federal division
- Grey
- Federal MP
- Tom Venning (LP)
- Two-party-preferred
- Coalition 55% 2PP
- State electorate
- Flinders
- State MP
- Sam Telfer (LIB)
Similar suburbs
Closest demographic & amenity profile, nationally.
Sources: ABS ASGS boundaries (CC BY 4.0); ABS Census 2021 (CC BY 4.0); ACARA School Locations (CC BY 4.0); © OpenStreetMap contributors (ODbL); 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); Planning and Design Code overlays (Hazards — Flooding, and Flooding — General), Government of South Australia (CC BY 3.0 AU); Planning and Design Code overlays (Hazards — Bushfire), Government of South Australia (CC BY 3.0 AU); Planning and Design Code Zones, Government of South Australia (PlanSA) (CC BY 3.0 AU); Planning and Design Code Overlays (heritage and character), Government of South Australia (PlanSA) (CC BY 3.0 AU); Wikipedia state-member tables (CC BY-SA 4.0). Not financial advice.