Idalia Demographics: Population, Age & Income Profile (QLD)
Liveability Score
5.5/10Idalia has a medium demographic profile typical of Queensland suburbs
Key Facts
- Median Age
- 38 years (state avg)
- Median Household Income
- $1,310/wk (state avg)
- Families with Children
- 28.3% of households
- Home Ownership
- 65.4% own — 31.9% rent
- Postcode
- 4811
- Highest high-risk exposure
- 19.8% of land (bushfire)
Demographics Analysis
Idalia in Queensland reflects the broader demographic characteristics of the region. According to the Australian Bureau of Statistics (ABS) 2021 Census, the typical household in Queensland has a median weekly income of around $1,310, with a median age of 38 years.
The ABS reports that 28.3% of households in Queensland are couples with children, while 26.5% are couples without children. Lone person households account for 23.9% of households. This family composition data helps home buyers understand the neighbourhood character and amenity demand.
Home ownership rates in Queensland show that 65.4% of households own their home (with or without a mortgage), while 31.9% rent. These tenure patterns affect property turnover rates, rental demand, and neighbourhood stability — all important factors for home buyers evaluating Idalia.
Climate risk is an increasingly important factor for property buyers evaluating suburbs like Idalia. 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 Idalia property to understand how climate projections may affect your investment.
Idalia (postcode 4811) 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 (19.8% of land in high-risk zones), tropical cyclone (8.6% of land in high-risk zones), extreme wind (7.3% of land in high-risk zones). Exposure is not uniform across Idalia — 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
Improve Flood Defenses
Near-termInvest in infrastructure improvements to protect against flooding, such as levees, drainage systems, and flood-proofing of buildings.
Est. cost: High
Develop a Heatwave Management Plan
ImmediateImplement a heatwave management plan to protect vulnerable populations, including early warning systems, cooling centers, and public awareness campaigns.
Est. cost: Medium
Enhance Bushfire Preparedness
Near-termImplement measures to reduce the risk of bushfires, such as clearing vegetation around homes, creating firebreaks, and educating residents about bushfire safety.
Est. cost: Low
Promote Water Conservation
Long-termEncourage water conservation to reduce the strain on water resources during periods of drought and heatwaves.
Est. cost: Low
Council & Emergency Services
Explore Idalia Risk Reports
View other climate risk assessments for Idalia:
Frequently Asked Questions
What is the population of Idalia?
Population data for Idalia 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 Queensland 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 Idalia?
The median age for Queensland is 38 years according to the 2021 ABS Census, which serves as a reference point for Idalia. 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 Idalia?
The median weekly household income in Queensland is $1,310 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 Idalia?
The demographic profile of Idalia is broadly shaped by its location within Queensland. According to the ABS Census, 28.3% of households in the state are couples with children, while 26.5% are couples without children. The overall population of Queensland has a median age of 38 — use this as context when assessing the demographic character of Idalia.
What share of Idalia is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 19.8% of Idalia in high-risk zones for bushfire, with a further 51.3% 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 Idalia Safe from Climate Risk?
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