Cairnlea, VIC 3023 — Suburb Profile
Last reviewed: · By Knowburb Research Team
In short
Cairnlea is a suburb of Victoria, postcode 3023, home to 10,038 residents with a balanced age mix. Located in the Brimbank local government area and roughly 18 km from the Melbourne CBD.
Snapshot
Demographics
- Population
- 10,038
- Median age
- 36 years
- Median household income
- $2,062 /week
- Median personal income
- $658 /week
- Median family income
- $1,998 /week
- Average household size
- 3.4
- Persons per bedroom
- 0.9
- Local government area
- Brimbank
- Statistical region (SA4)
- Melbourne - West
- Remoteness classification
- Major Cities of Australia
- Federal electorate
- Gorton
Property & cost of living
- Median rent
- $400 /week
- Median monthly mortgage
- $1,883
- Rent share of household income
- 19%
Schools
- Derrimut Primary School
- St Lawrence Catholic Primary School
- Deer Park West Primary School
- St Peter Chanel School
- Ardeer South Primary School
Transport
- Within 800 m walk: 1 train stop, 15 bus stops
- Within 1.6 km: 1 train stop, 46 bus stops
- Foleys Rd/Mount Derrimut Rd
- Hammerwood Ave/St Leonards Ave
- Sheryn St/Hammerwood Ave
- Deer Park Station/Mt Derrimut Rd
- Deer Park Station
Lifestyle & amenities
- 8 cafés
- 28 restaurants
- 35 parks and reserves
- 6 gyms and fitness centres
- 3 supermarkets
- 18 playgrounds
Climate
- Warmest month: Jan (25.8°C avg max)
- Coolest month: Jul (13.8°C avg max)
- Annual rainfall: 533 mm
- Reference station: Laverton RAAF, 8.6 km away
NBN & connectivity
Fibre to the Node serves 52.3% of the 2,879 resolvable premises in Cairnlea. Most premises here connect via fibre to a street cabinet, then copper into the home. Speeds depend heavily on the copper run length — NBN 100 is rarely achievable on long runs.
- Fibre to the Premises: 47.5%
- Hybrid Fibre-Coaxial: 0.1%
- Fibre to the Node: 52.3%
Safety
- Recorded offences: 4,601 across postcode 3023 in the year to December 2025.
- Most common categories: 2,659 property offences, 696 violent offences, 201 drug offences.
- Wider Brimbank LGA: 9,438 offences per 100,000 residents.
Frequently asked questions
What is the population of Cairnlea?
Cairnlea (VIC 3023) had 10,038 residents at the most recent ABS Census. The median age is 36. It sits within the Brimbank local government area.
What is the median rent in Cairnlea?
The median advertised rent in Cairnlea is $400/week, based on SQM Research listings data. Rents vary by property type, bedrooms and condition.
Are there schools in Cairnlea?
Yes — 5 schools are listed within or near Cairnlea covering government, catholic sectors. Nearest include: Derrimut Primary School (1 km), St Lawrence Catholic Primary School (1.3 km), Deer Park West Primary School (1.3 km). School data sourced from ACARA and state education departments.
What NBN technology is available in Cairnlea?
Cairnlea is predominantly served by Fibre to the Node (52.3% of premises). Coverage data is sourced from the NBN upgrade map aggregated from NBN Co address checks.
How safe is Cairnlea?
Across postcode 3023, 4,601 offences were recorded in the 12 months to December 2025. The most common offence categories were property (2,659), violent (696), drug offences (201). Crime statistics are recorded by area (postcode or LGA), not by individual suburb. Data sourced from each state's crime statistics agency.
What is the climate like in Cairnlea?
In Cairnlea, mean daily temperatures range from 9.5°C to 19.8°C and annual rainfall is 533 mm measured at the Laverton RAAF weather station (8.6 km away). Long-term averages from the Bureau of Meteorology.
What public transport options are in Cairnlea?
47 public transport stops are mapped within 1.6 km of the Cairnlea centroid. Within 800 m, you'll find 15 bus stops, 1 train stop. Stop data is sourced from state government GTFS feeds.
Sources & methodology
Demographics from ABS Census. Property data from SQM Research. Climate from Bureau of Meteorology. Schools from ACARA. NBN from NBN Co. Amenities from OpenStreetMap. See full methodology.
Additional sources for this profile: