St Lucia Demographics: Population, Age & Income Profile (QLD)
Liveability Score
5.5/10St Lucia 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
- 4067
- Highest high-risk exposure
- 18.1% of land (tropical cyclone)
Demographics Analysis
St Lucia 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 St Lucia.
Climate risk is an increasingly important factor for property buyers evaluating suburbs like St Lucia. 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 St Lucia property to understand how climate projections may affect your investment.
St Lucia (postcode 4067) 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 tropical cyclone (18.1% of land in high-risk zones), riverine flood (12.6% of land in high-risk zones), bushfire (9.6% of land in high-risk zones). Exposure is not uniform across St Lucia — 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
ImmediateInvest in flood barriers, levees, and improved drainage systems to protect properties from inundation.
Est. cost: High
Enhance Heatwave Preparedness
ImmediateImplement heat action plans, establish cooling centers, and promote public awareness campaigns to reduce heat-related illnesses.
Est. cost: Medium
Strengthen Building Codes
Near-termUpdate building codes to incorporate climate resilience measures, such as flood-resistant materials and energy-efficient designs.
Est. cost: Medium
Protect and Restore Green Spaces
Long-termPreserve and expand green spaces to reduce the urban heat island effect and improve stormwater management.
Est. cost: Medium
Community Education Programs
Near-termDevelop and implement community education programs to raise awareness about climate risks and adaptation strategies.
Est. cost: Low
Council & Emergency Services
Explore St Lucia Risk Reports
View other climate risk assessments for St Lucia:
Frequently Asked Questions
What is the population of St Lucia?
Population data for St Lucia 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 St Lucia?
The median age for Queensland is 38 years according to the 2021 ABS Census, which serves as a reference point for St Lucia. 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 St Lucia?
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 St Lucia?
The demographic profile of St Lucia 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 St Lucia.
What share of St Lucia is exposed to high tropical cyclone risk?
ClimateNest's hazard overlay maps 18.1% of St Lucia in high-risk zones for tropical cyclone, with a further 71.5% 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 St Lucia Safe from Climate Risk?
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