Derby Demographics: Population, Age & Income Profile (WA)
Liveability Score
7.2/10Derby has a high demographic profile typical of Western Australia suburbs
Key Facts
- Median Age
- 37 years (state avg)
- Median Household Income
- $1,496/wk (state avg)
- Families with Children
- 27.1% of households
- Home Ownership
- 67.2% own — 29.2% rent
- Postcode
- 6728
- Highest high-risk exposure
- 19.4% of land (bushfire)
Demographics Analysis
Derby in Western Australia reflects the broader demographic characteristics of the region. According to the Australian Bureau of Statistics (ABS) 2021 Census, the typical household in Western Australia has a median weekly income of around $1,496, with a median age of 37 years.
The ABS reports that 27.1% of households in Western Australia are couples with children, while 25.3% are couples without children. Lone person households account for 22.9% of households. This family composition data helps home buyers understand the neighbourhood character and amenity demand.
Home ownership rates in Western Australia show that 67.2% of households own their home (with or without a mortgage), while 29.2% rent. These tenure patterns affect property turnover rates, rental demand, and neighbourhood stability — all important factors for home buyers evaluating Derby.
Climate risk is an increasingly important factor for property buyers evaluating suburbs like Derby. Different demographic groups face different climate exposure profiles — families may prioritise heat safety near schools, while retirees may be more concerned about insurance costs in flood-prone areas. Get an address-level climate risk report for your Derby property to understand how climate projections may affect your investment.
Derby (postcode 6728) is tracked in ClimateNest's suburb hazard model, which maps the share of the suburb's land exposed to each hazard at high and moderate levels. The suburb's highest high-risk exposures are bushfire (19.4% of land in high-risk zones), surface flood (8.7% of land in high-risk zones), riverine flood (6.8% of land in high-risk zones). Exposure is not uniform across Derby — individual properties can sit well above or below these averages, so an address-level check is recommended before buying, selling or insuring.
Adaptation & Mitigation Actions
Upgrade Flood Defenses
ImmediateInvest in infrastructure to protect against flooding, such as levees, drainage systems, and flood barriers.
Est. cost: High
Develop a Heat Action Plan
Near-termImplement a plan to protect vulnerable populations during heatwaves, including cooling centers and public awareness campaigns.
Est. cost: Medium
Implement Coastal Protection Measures
Near-termProtect coastal areas from erosion and inundation through measures such as seawalls, beach nourishment, and managed retreat.
Est. cost: High
Improve Bushfire Preparedness
Long-termReduce the risk of bushfires through fuel reduction, firebreaks, and community education programs.
Est. cost: Medium
Council & Emergency Services
Explore Derby Risk Reports
View other climate risk assessments for Derby:
Frequently Asked Questions
What is the population of Derby?
Population data for Derby comes from the ABS 2021 Census, the most recent national census. For the most current suburb-level population data, refer to ABS QuickStats or consult the Western Australia state government's population projections. Understanding population trends helps home buyers assess housing demand, infrastructure investment, and neighbourhood character.
What is the median age in Derby?
The median age for Western Australia is 37 years according to the 2021 ABS Census, which serves as a reference point for Derby. A younger median age often indicates more families and first home buyers, while older demographics suggest established households and potentially lower turnover. Both have implications for property demand and investment strategy.
What is the average household income in Derby?
The median weekly household income in Western Australia is $1,496 per week (ABS 2021 Census). Household income affects serviceability for mortgage lending, rental affordability, and the type of housing stock in demand within a suburb. Higher-income areas typically support stronger property values and faster capital growth. Combine demographic research with a climate risk report from ClimateNest for a complete property assessment.
What type of people live in Derby?
The demographic profile of Derby is broadly shaped by its location within Western Australia. According to the ABS Census, 27.1% of households in the state are couples with children, while 25.3% are couples without children. The overall population of Western Australia has a median age of 37 — use this as context when assessing the demographic character of Derby.
What share of Derby is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 19.4% of Derby in high-risk zones for bushfire, with a further 54.3% in moderate-risk zones. Suburb-level exposure is not uniform — individual properties can differ from these averages, so an address-level check is recommended.
Is Derby Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Derby, Western Australia, covering flood, bushfire, sea level rise and more.
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*Industry sources: ICA, APRA, RBA
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