SA · Elliston Council
Lock, SA, 5633
Current weather
11.9°CLight drizzle
90% humidity · 28.3 km/h wind · 13.3° / 10.5° today · 8.3 mm rain
Desirability index
#118 among Coastal & beach suburbs
Suburb snapshot
Lock is a small locality in the Elliston area, home to around 253 residents (2021 Census). Recent indicators show reported crime totals of around 9 offences in 2024–25 (Jul–Jun), roughly 35.6 offences per 1,000 residents, median weekly rent around $230, 2 school and preschool sites in the area, and notable planning and development activity on record. Use the sections below for detailed population, safety, schools, and local activity data.
Population
- Population
- 253
- Median age
- 38
- Median household income / week
- $1,125
- Dwelling vacancy
- 32.1%
- Unoccupied private dwellings
- 43 of 134
- Median monthly mortgage
- $512
- Employment rate
- 61.5%
- Dwelling mix (houses / semi / flats)
- 0 / 0 / 0
Data sources & freshness
- 2021 Census — General Community Profile — Australian Bureau of Statistics · Period: 2021 · Updated on site · 2021 Census release
The 2026 Census runs in August 2026; suburb-level updates are expected from mid-2027.
Housing
- Flats / units (01/01/26 to 31/03/26)
- $230
Median weekly rent from SA Housing Authority rental bond data. Figures can be unreliable where few bonds were lodged in the quarter.
Data sources & freshness
- SA Housing Authority rent & sales reports — Government of South Australia · Period: 1 January - 31 March 2026 · Updated on site · Quarterly releases
Crime & safety
- Total offences (2024–25)
- 9
- Against the person
- 1
- Against property
- 8
- Rate per 1,000 residents
- 35.6
- Person-crime prevalence
- About 1 in 253 residents
- State safety percentile
- 51.1th (lower crime is better)
- Family & domestic abuse offences
- 1
- Year-on-year change
- 0%
Most common offence types
- Other Theft3
- Other Unlawful Entry With Intent2
- Sct - Non Residence1
- Sct - Residence1
- Serious Assault Not Resulting In Injury1
Data sources & freshness
- SAPOL reported crime statistics — South Australia Police — OpenData · Period: 2024-25; 2024-25 → 2024-25 · Updated on site · Financial-year releases
Schools & preschools
- Schools & preschools
- 2 (1 schools, 1 preschools)
- Median school ICSEA
- 960
- Lock Area SchoolCombined · ICSEA 960
- Lock Early Learning CentreWest TerracePreschools
Data sources & freshness
- Government education sites register — Government of South Australia · Period: current · Updated on site · Static register
- School ICSEA (ACARA) — Australian Curriculum, Assessment and Reporting Authority · Period: 2025 · Updated on site · Annual ACARA release
Planning & development
Development applications from PlanSA register (lodged 2020–2026) and EPA licensed activities.
24 planning-related records
2026· 1 proposal
May 2026
- Change of use to a retail fuel outlet including building alterations, the construction of a canopy, advertisement signage and above ground fuel tanks.14 RAILWAY TCE LOCK SA 5633Under Assessment
2025· 3 proposals
November 2025
- Construction of a verandahLOT 66 BIRDSEYE HWY LOCK SA 5633Decision Made
July 2025
- Variation of Development Application 25012121 – Reduction in the floor area of the fencing compound5 -9 STARKE ST LOCK SA 5633Decision Made
May 2025
- Telecommunications Facility including 40m high monopole, nine panel antennas, associated equipment shelter and fencing5 -9 STARKE ST LOCK SA 5633Under Assessment
2024· 3 proposals
November 2024
- Construction of three worker's accommodation unitsLOT 1 HERON ST LOCK SA 5633Decision Made
October 2024
- Construction of an agricultural building (grain and fertiliser storage shed)11715 BIRDSEYE HWY LOCK SA 5633Decision Made
July 2024
- Boundary realignment (3 into 3)12245 TOD HWY LOCK SA 5633;5 HITCHCOCK ST LOCK SA 5633;7 HITCHCOCK ST LOCK SA 5633Decision Made
2023· 2 proposals
July 2023
- Construction of an agricultural building and the construction of an outbuilding (shed)12979 TOD HWY LOCK SA 5633Decision Made
February 2023
- Construction of an agricultural building (implement shed)3498 HUNDRED LINE RD LOCK SA 5633Decision Made
2022· 2 proposals
October 2022
- Construction of an Agricultural building (shearing shed) (retrospective)12884 TOD HWY LOCK SA 5633Decision Made
February 2022
- Demolition of existing buildings and ancillary structures and the construction of a new multi purpose complex (indoor recreation facility)2 HITCHCOCK ST LOCK SA 5633Decision Made
2021· 6 proposals
September 2021
- Outbuilding1-3 NORTH TCE LOCK SA 5633Decision Made
August 2021
- Tourist Accommodation (comprising 1 two bedroom cabin and 4 one bedroom studio apartments), camp kitchen and ancillary works.2 RAILWAY TCE LOCK SA 5633Decision Made
- Outbuilding17 BIRDSEYE HWY LOCK SA 5633Decision Made
- Outbuilding, dwelling addition (attached garage) and water tanks.LOT 52 HERON ST LOCK SA 5633Decision Made
May 2021
- Alterations and additions to existing telecommunications facility16 RAILWAY TCE LOCK SA 5633Decision Made
January 2021
- Agricultural building58 RYAN RD LOCK SA 5633Under Assessment
2020· 5 proposals
December 2020
- Horse shelterLOT 299 HERON ST LOCK SA 5633Decision Made
October 2020
- Alterations and additions to existing dwelling. New concrete slab with timber frame walls and roof. All new materials to match existing. New kitchen, laundry, bedroom and living.10147 BIRDSEYE HWY LOCK SA 5633Decision Made
September 2020
- Ancillary building to existing bulk handling facility10853 BIRDSEYE HWY LOCK SA 5633Decision Made
- Stock Slaughter Works (Revival of previous use)11047 TOD HWY LOCK SA 5633Decision Made
- Outbuilding (in the form of a garage)17 BIRDSEYE HWY LOCK SA 5633Decision Made
Other· 2 proposals
- DISTRICT COUNCIL OF ELLISTONResource Recovery Waste Disposal and RelatedEPA licence
- L.H. PERRY & SONS PTY. LTD.Hydrocarbon and ChemicalEPA licence
Data sources & freshness
- PlanSA development applications & EPA licences — Government of South Australia — PlanSA · Period: 2020; 2020–2026; 2021… · Updated on site
Amenities
No OpenStreetMap amenities mapped for this suburb yet.
Data sources & freshness
- OpenStreetMap amenities — OpenStreetMap contributors · Period: current · Updated on site · Weekly refresh
Socio-economic (SEIFA)
- IRSAD decile (2021)
- 5/10
- IRSD decile (2021)
- 3/10
SEIFA indexes from ABS 2021. Decile 10 = most advantaged / least disadvantaged in Australia.
Data sources & freshness
- SEIFA 2021 (IRSAD / IRSD) — Australian Bureau of Statistics · Period: 2021 · Updated on site · 2021 SEIFA release
Hazards
- Bushfire planning zone
- Overlay applies
- Bushfire safer places
- 1
Bushfire overlay checked at suburb centroid via SA Planning geohub. Safer places from CFS designated locations.
Data sources & freshness
- Bushfire & hazard overlays (SA) — Government of South Australia · Period: current · Updated on site
Green cover
- Parks & woodland (OSM)
- 396
- Parks (OSM)
- 1
OpenStreetMap parks and natural woodland features mapped within the suburb boundary.
Data sources & freshness
- OpenStreetMap green cover features — OpenStreetMap contributors · Period: current · Updated on site · Weekly refresh
Desirability index
- Desirability score
- 23.5/100
- Cohort rank
- #118 among Coastal & beach suburbs
Data sources & freshness
- Suburb Guide desirability index — Suburb Guide (derived score) · Period: current · Updated on site · Derived from source metrics
Recent changes
- Agricultural buildingplanning58 RYAN RD LOCK SA 5633Lodged 06 Jan 2021 · Under Assessment
- Alterations and additions to existing dwelling. New concrete slab with timber frame walls and roof. All new materials to match existing. New kitchen, laundry, bedroom and living.planning10147 BIRDSEYE HWY LOCK SA 5633Lodged 23 Oct 2020 · Decision Made
- Alterations and additions to existing telecommunications facilityplanning16 RAILWAY TCE LOCK SA 5633Lodged 03 May 2021 · Decision Made
- Ancillary building to existing bulk handling facilityplanning10853 BIRDSEYE HWY LOCK SA 5633Lodged 30 Sep 2020 · Decision Made
- Boundary realignment (3 into 3)planning12245 TOD HWY LOCK SA 5633;5 HITCHCOCK ST LOCK SA 5633;7 HITCHCOCK ST LOCK SA 5633Lodged 29 Jul 2024 · Decision Made
- Change of use to a retail fuel outlet including building alterations, the construction of a canopy, advertisement signage and above ground fuel tanks.planning14 RAILWAY TCE LOCK SA 5633Lodged 08 May 2026 · Under Assessment
- Construction of a verandahplanningLOT 66 BIRDSEYE HWY LOCK SA 5633Lodged 20 Nov 2025 · Decision Made
- Construction of an Agricultural building (shearing shed) (retrospective)planning12884 TOD HWY LOCK SA 5633Lodged 25 Oct 2022 · Decision Made
- Construction of an agricultural building (grain and fertiliser storage shed)planning11715 BIRDSEYE HWY LOCK SA 5633Lodged 15 Oct 2024 · Decision Made
- Construction of an agricultural building (implement shed)planning3498 HUNDRED LINE RD LOCK SA 5633Lodged 27 Feb 2023 · Decision Made
Data sources & freshness
- PlanSA development applications & EPA licences — Government of South Australia — PlanSA · Updated on site
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