What the mapping shows for Trevallyn
Part of Trevallyn is mapped as subject to coastal inundation.
2.8% of Trevallyn is mapped as subject to coastal inundation (coastal inundation hazard band, including 1% AEP storm tide at 2100)
10.6% of Trevallyn is mapped as subject to coastal erosion (coastal erosion hazard band mapped for the Tasmanian planning system)
Tasmanian Coastal Inundation Hazard Bands (20161201), State of Tasmania (Department of Premier and Cabinet), Creative Commons Attribution 4.0, retrieved 2026-10-23
This is a share of the suburb's land area from a published state dataset, not an assessment of any property. A ClimateNest report scores the individual address across eight hazards, with insurance and value projections to 2050.
Check an address in Trevallyn →Trevallyn Demographics: Population, Age & Income Profile (TAS)
2.8% of Trevallyn is mapped as subject to coastal inundation (coastal inundation hazard band, including 1% AEP storm tide at 2100)
That figure covers the suburb. Check whether your address is inside it - address-level, sourced, A$49.
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Liveability Score
5.2Trevallyn has a medium demographic profile typical of Tasmania suburbs
Key Facts
- Median Age
- 42 years (state avg)
- Median Household Income
- $1,099/wk (state avg)
- Families with Children
- 28.3% of households
- Home Ownership
- 69.8% own — 27.8% rent
- Postcode
- 7250
Demographics Analysis
Trevallyn in Tasmania reflects the broader demographic characteristics of the region. According to the Australian Bureau of Statistics (ABS) 2021 Census, the typical household in Tasmania has a median weekly income of around $1,099, with a median age of 42 years.
The ABS reports that 28.3% of households in Tasmania are couples with children, while 28.7% 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 Tasmania show that 69.8% of households own their home (with or without a mortgage), while 27.8% rent. These tenure patterns affect property turnover rates, rental demand, and neighbourhood stability — all important factors for home buyers evaluating Trevallyn.
Climate risk is an increasingly important factor for property buyers evaluating suburbs like Trevallyn. 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 Trevallyn property to understand how climate projections may affect your investment.
ClimateNest assesses hazards at the address rather than the suburb, because exposure varies street by street within Trevallyn. An address-level check is what tells you about a specific property before you buy, sell or insure it.
Adaptation & Mitigation Actions
Improve Flood Defenses
Near-termInvest in infrastructure to mitigate flood risk, such as improved drainage systems and levees.
Est. cost: High
Enhance Bushfire Preparedness
Near-termImplement stricter building codes in bushfire-prone areas and promote community education on bushfire safety.
Est. cost: Medium
Develop Heat Action Plan
ImmediateCreate a heat action plan to protect vulnerable populations during heatwaves, including cooling centers and public awareness campaigns.
Est. cost: Low
Promote Water Conservation
Long-termEncourage water conservation measures to reduce strain on water resources during periods of drought and heat.
Est. cost: Low
Council & Emergency Services
Explore Trevallyn Risk Reports
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Frequently Asked Questions
What is the population of Trevallyn?
Population data for Trevallyn 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 Tasmania 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 Trevallyn?
The median age for Tasmania is 42 years according to the 2021 ABS Census, which serves as a reference point for Trevallyn. 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 Trevallyn?
The median weekly household income in Tasmania is $1,099 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 Trevallyn?
The demographic profile of Trevallyn is broadly shaped by its location within Tasmania. According to the ABS Census, 28.3% of households in the state are couples with children, while 28.7% are couples without children. The overall population of Tasmania has a median age of 42 — use this as context when assessing the demographic character of Trevallyn.
Is Trevallyn Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Trevallyn, Tasmania, covering flood, bushfire, sea level rise and more.
What A$49 could save you from
*Industry sources: ICA, APRA, RBA
Full report from A$49 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections