Lock is in Elliston LGA, SA, postcode 5633, with population 253.
The page has enough signal to be useful, but the story is mixed rather than decisive. Use compare mode to pressure-test it against stronger nearby options, then use the calculator if it still makes the shortlist.
Small local population makes the signal set more fragile.
Price series isn't recorded for this suburb. Census housing data is shown instead.
67% of homes here are owner-occupied and 26% rented, with 3% of landlords negatively geared.
A balanced 67% owner-occupier / 26% renter mix.
ABS Census 2021 tenure (G37), ATO postcode rental statistics, and QuickProperty's investor-exposure index. Owner-occupied = owned outright + with a mortgage.
This suburb 20% · SA median 18%
Nationally · lighter rent burden than 40% of AU suburbs
Owners with a mortgage repay a median of $512/mo, while renters pay about $997/mo — renting runs $485/mo higher on these medians.
At the median asking rent, about 30% of households here would spend more than 30% of income on rent (rent stress line: $767/wk income).
Getting to work: 55% drive, 0% public transport, 13% walk or cycle, 21% worked from home (2021 Census, taken during COVID-era work-from-home arrangements).
Building due diligence
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No local compliance layer is staged.
This is missing evidence, not evidence that the property has no constraints.
Confirm the NCC climate zone used for the building design and energy provisions.
May affect: Insulation and glazing · Condensation control · Roof-space ventilation
A suburb layer cannot determine the site wind classification or Bushfire Attack Level.
May affect: Structure and tie-downs · Cladding and fixings · Openings and bushfire detailing
Confirm marine or corrosive exposure and the applicable termite-management requirements.
May affect: Fasteners and connectors · Roofing and coatings · Termite management
This screen identifies investigation triggers, not building quality or property compliance. Confirm the address, design and current jurisdiction rules with the council, building surveyor or certifier, designer and engineer.
NCC 2022 Housing Provisions: how to use · NCC 2022 Volume Two and Housing Provisions
ABS population projection (2022 base) for the Le Hunte - Elliston SA2 statistical area — the finest official projection grain available; suburb-level projections do not exist.
Located in South Australia within the Elliston local government area, Lock is a quiet locality (postcode 5633). With a population of 253, the suburb has an established family demographic with a median age of 38. Households earn a median income of $59K per year, with an average household size of 2.2 people. Recent annual estimates show population movement staying broadly stable across the broader catchment, with population growth running at +0.3% year-on-year at the LGA level. SA employment has moved +1.6% year-on-year in the official ABS Labour Force trend series, which provides the broader jobs backdrop for this suburb. SA also had 21 Commonwealth-backed major projects under construction, 7 underway, and 7 in planning as at 2025-09-01, which is useful as a broader delivery backdrop rather than a suburb-specific project count. The most common occupations are managers, labourers, clerical & administrative. Employment in the area leans toward agriculture and education. The top ancestries reported are Australian, English, German.
The current median weekly rent is $230. The median monthly mortgage repayment is $512.
Lock is served by 1 school, including 1 combined. The average ICSEA score is 960, which is around the national average of 1,000. The crime rate in the Elliston LGA is below average at 3,557 incidents per 100,000 population.
From an investment perspective, Population growth of +0.3% year-on-year points to stable demand fundamentals. Building approvals have changed +0% year-on-year, indicating steady development activity.
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Lock has enough direct local evidence for a first-pass decision.
QuickProperty mixes release files, Census baselines, and matched local services on this page. Read the status panel before treating every metric as equally fresh.
Official quarterly house sales workbooks; units remain on ABS fallback coverage
Use current rent as a starting signal, not as a fixed underwriting truth.
Schools, transport, and hospitals are useful as presence signals, but they still have different source cadences.
Lock is in the Elliston Local Government Area, SA, postcode 5633. Council-level context for Elliston LGA (suburb mix, population, rent, and price coverage) is available on the QuickProperty LGA page.
The median weekly rent in Lock is $230/wk, based on the current market rent dataset. The current rent signal is rent context available.
Rent context available: Lock has usable rent context. Use this as a suburb screening signal before comparing candidates or modelling a purchase; the matching rent ranking can provide broader market context.
QuickProperty's investment signals for Lock show: Stable, Steady. These are computed from price, rent, income, and population data — not an opaque score.
Property prices come from state Valuers General offices and ABS Data by Region. Demographics are from ABS Census 2021. School ICSEA scores are from ACARA. Crime statistics are from state police agencies. Transport data is sourced from GTFS feeds.
Property prices update quarterly. RBA macro indicators update with each deploy. Demographics are from Census 2021. School ICSEA scores are from ACARA 2025.