Port Arthur Demographics: Population, Age & Income Profile (SA)
Liveability Score
5.5/10Port Arthur has a medium demographic profile typical of South Australia suburbs
Key Facts
- Median Age
- 40 years (state avg)
- Median Household Income
- $1,197/wk (state avg)
- Families with Children
- 27.8% of households
- Home Ownership
- 68.1% own — 29.2% rent
Demographics Analysis
Port Arthur in South Australia reflects the broader demographic characteristics of the region. According to the Australian Bureau of Statistics (ABS) 2021 Census, the typical household in South Australia has a median weekly income of around $1,197, with a median age of 40 years.
The ABS reports that 27.8% of households in South Australia are couples with children, while 27.1% are couples without children. Lone person households account for 27.9% of households. This family composition data helps home buyers understand the neighbourhood character and amenity demand.
Home ownership rates in South Australia show that 68.1% 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 Port Arthur.
Climate risk is an increasingly important factor for property buyers evaluating suburbs like Port Arthur. 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 Port Arthur property to understand how climate projections may affect your investment.
Adaptation & Mitigation Actions
Coastal Protection Measures
ImmediateImplement coastal protection measures such as seawalls, breakwaters, and beach nourishment to protect the historic site and infrastructure from sea level rise and storm surges.
Est. cost: High
Bushfire Risk Management
Near-termImplement bushfire risk management strategies such as fuel reduction burns, firebreaks, and community education programs to reduce the risk of bushfires impacting the town.
Est. cost: Medium
Heatwave Preparedness
Near-termDevelop a heatwave preparedness plan that includes public awareness campaigns, cooling centers, and measures to protect vulnerable populations from heat stress.
Est. cost: Low
Flood Mitigation
Long-termImprove drainage infrastructure and implement flood mitigation measures to reduce the risk of flooding from heavy rainfall events.
Est. cost: Medium
Council & Emergency Services
Explore Port Arthur Risk Reports
View other climate risk assessments for Port Arthur:
Frequently Asked Questions
What is the population of Port Arthur?
Population data for Port Arthur 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 South 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 Port Arthur?
The median age for South Australia is 40 years according to the 2021 ABS Census, which serves as a reference point for Port Arthur. 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 Port Arthur?
The median weekly household income in South Australia is $1,197 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 Port Arthur?
The demographic profile of Port Arthur is broadly shaped by its location within South Australia. According to the ABS Census, 27.8% of households in the state are couples with children, while 27.1% are couples without children. The overall population of South Australia has a median age of 40 — use this as context when assessing the demographic character of Port Arthur.
Is Port Arthur Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Port Arthur, South Australia, covering flood, bushfire, sea level rise and more.
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