Trevallyn
A house here sells for $705,500 in 2026 yet the suburb sits only at the 53.1st income percentile nationally, a gap that tells you Trevallyn runs on affordability rather than wealth. The stock is overwhelmingly detached, 91.5% separate houses against just 3.0% apartments, and 42.0% of residents hold a university qualification, 11.9 points above the national figure. The median age of 40 matches national exactly, but the trajectory is aging: the senior share rose 4.7 points over the decade while the working-age share fell 1.9 points. Population growth is slow at 0.21% a year, and the 9.74 km2 footprint keeps density low at 495.7 residents per km2.
Population
4,826
Median Age
40.0
Household IncomeiMedian weekly household income (ABS Census)
$1,614/wk
DAs (12 months)iDevelopment Applications lodged in the past year
0
Median House
$706K
YTD 2026
The $705,500 median is well below mainland capital prices, and it climbed steadily from $600,000 in 2024 to $660,000 in 2025, a roughly 17.6% rise across two years. What makes the entry manageable is the income-to-cost balance: monthly mortgage repayments average just $1,387, giving a mortgage-to-income ratio of 19.8%, far below the 30% stress threshold. The stock suits families rather than downsizers, with 47.7% of dwellings holding three bedrooms and 31.2% four or more, while two-bedroom homes are only 17.2%. Separate houses dominate at 91.5%, so buyers compete for detached blocks rather than units. Outright owners (37.5%) slightly outnumber mortgage holders (36.3%), a sign of an established owner base rather than recent churn.
For Buyers
The $705,500 median is well below mainland capital prices, and it climbed steadily from $600,000 in 2024 to $660,000 in 2025, a roughly 17.6% rise across two years. What makes the entry manageable is the income-to-cost balance: monthly mortgage repayments average just $1,387, giving a mortgage-to-income ratio of 19.8%, far below the 30% stress threshold. The stock suits families rather than downsizers, with 47.7% of dwellings holding three bedrooms and 31.2% four or more, while two-bedroom homes are only 17.2%. Separate houses dominate at 91.5%, so buyers compete for detached blocks rather than units. Outright owners (37.5%) slightly outnumber mortgage holders (36.3%), a sign of an established owner base rather than recent churn.
For Investors
Weekly rent of $300 against the $705,500 median implies a gross yield near 2.2%, modest, and the 8.0% vacancy rate points to a tenant market that is not tight. Renters make up 26.2% of households, a smaller pool than mainland metro suburbs, which limits demand depth. The growth case is thin on paper: net internal migration runs at minus 74 a year while overseas migration adds only 31, leaving annual population growth at 0.21%. There were zero development applications recorded in the past 12 months, so new supply is essentially flat and existing stock holds its value through scarcity. Rent grew 25.0% over the measured period, the strongest signal for landlords, but with yields near 2.2% the return leans on capital growth and the long-run 7.0% price CAGR rather than cash flow.
Schools in Trevallyn iICSEA: school advantage index. 1000 = national avg, higher = more advantaged
Trevallyn Primary School
K-6 · 392 students
Demographics
The median age of 40 is exactly level with the national figure, yet the profile is aging because the senior share rose 4.7 points while the working-age share fell 1.9 points over the decade. University qualifications reach 42.0%, which is 11.9 points above national, consistent with a workforce led by Professionals (740) and Managers (319). The suburb is anglo-leaning: English ancestry dominates at 2,262, followed by Scottish (585) and Irish (559), and only 16.7% of residents were born overseas, 4.9 points below the national rate. Average household size is 2.4, marginally below the national 2.5, reflecting a mix of 1,617 couples with children and 1,084 couples without. Non-English languages are scarce, led by Nepali (23 speakers) and Urdu (18), so the resident base is far less multilingual than metropolitan Australia.
Age Distribution
Bedrooms
Dwelling Structure
91.5%
Houses
5.4%
Townhouse
3.0%
Apartment
Tenure
Tenure is split almost evenly between outright owners (37.5%) and mortgage holders (36.3%), with renters at 26.2%, a balance that signals stable, long-held ownership rather than rapid turnover, supported by a 78.2% stayed-put rate. The stock is 91.5% separate houses and only 3.0% apartments, which keeps the market family-oriented and supply tight at the detached end. Three-bedroom homes account for 47.7% and four-plus bedrooms 31.2%, leaving smaller dwellings rare. The median house price rose from $600,000 in 2024 to $705,500 in 2026, and over 30 years it has compounded at 7.0% a year from a 1996 base of $93,000. Both stress measures sit comfortably below the 30% threshold: mortgage-to-income at 19.8% and rent-to-income at 18.6%, an affordability advantage relative to most mainland markets.
Median House Price Trend
Source: State Valuer-General
Mortgage / mo
$1,387
Rent / wk
$300
HH Size
2.4
Personal Income / wk
$845
Vacancy Ratei% of dwellings unoccupied on Census night (ABS 2021)
8.0%
Unoccupied
166
Rent / IncomeiMedian rent as % of household income. Over 30% = housing stress
18.6%
Mortgage / IncomeiMedian mortgage as % of household income. Over 30% = housing stress
19.8%
Community Profile
Languages Spoken at Home
Ancestry
Household Composition
28.9%
Couples, no children
3,751
Total families
Economy & Employment
The workforce is anchored in public-service sectors: Healthcare leads at 23.6% (427 workers) and Education follows at 18.8% (341), together accounting for more than four in ten local jobs, with Professional/Tech at 8.0%, Construction at 7.3% and Public Admin at 7.0%. By occupation, Professionals (740) sit well ahead of Community and Personal Service workers (336) and Managers (319). Unemployment is 5.0% and the participation rate is 62.8%, with 1,232 residents not in the labour force, consistent with the aging profile. The SEIFA scores split: IEO reaches decile 8 on the strength of the 42.0% university rate, but IER falls to decile 5, a gap that reflects modest household incomes (53.1st percentile) despite high education. Real incomes grew 9.4% over the decade.
Unemployment
2.1%
Labour Force
2,715
Unemployed
56
Quarterly Trend
Source: SALM Dec-25
Socio-Economic Indexes (SEIFA)iABS index ranking suburbs from 1 (most disadvantaged) to 10 (most advantaged)
Full-time
59.6%
Part-time
35.4%
Participation
62.8%
Employed
2,353
Occupations
Top Industries
University
42.0%
Postgraduate
12.2%
Born Overseas
16.7%
Dwellings
1,914
Transport to Work
Daily life here is car-dependent: 86.0% of commuters drive, public transport carries just 0.5%, and 6.1% walk or cycle, reflecting the low 495.7 residents per km2 density across the 9.74 km2 area. The suburb scores decile 7 on IRSD for relative disadvantage and decile 6 on IRSAD, both above the midpoint, so few residents face deprivation, and only 4.5% (209 people) need daily assistance. Community engagement is healthy, with a volunteering rate of 22.1%, higher than the national average. No schools are recorded inside the boundary in this dataset, so families rely on institutions in neighbouring Launceston, a practical trade-off offset by the strong 42.0% university attainment, 11.9 points above national, among the resident population.
Drive
86.0%
Public Transport
0.5%
Walk / Cycle
6.1%
Work from Home
N/A
Population Forecast
+0.21%/yr
(+10 people/yr)
EstablishedTrevallyn is an established, slow-growth suburb: annual population growth is 0.21%, about 10 residents a year, and the 10-year change is just 4.0%. Recent counts have edged down from 4,905 in 2023 to 4,874 in 2025 before the medium forecast lifts the population to 4,964 by 2031, so expansion is marginal. The only positive driver is overseas migration at 31 a year, offset by net internal outflow of 74, which is why growth stays near flat. The gentrification stage reads not gentrifying with a score of 11, fitting a suburb whose advantage indexes (IEO decile 8, IRSAD decile 6) leave limited room to climb. Affordability improved from 38.2% in 2011 to 35.5% in 2021, a sign the local income base broadly kept pace with prices.
Historical + Forecast
Hamilton-Perry + Holt smoothing on ERP 2001-2025
Age Cohort Forecast
Primary Driver
Overseas Migration
Net Overseas / yr
+31
Net Internal / yr
-74
Gentrification Signal
Not gentrifying
National Ranking iPercentile rank among ~15,000 AU suburbs. 90% = higher than 90% of suburbs
How Trevallyn compares to ~15,000 Australian suburbs
Frequently Asked Questions
Is Trevallyn a good suburb to live in?
Trevallyn scores decile 7 on IRSD and decile 8 on the IEO education index, both above the midpoint, with 42.0% of residents university-qualified, 11.9 points above national. It is quiet and family-oriented, with 91.5% detached houses and a volunteering rate of 22.1%, though it is car-dependent at 86.0% driving to work.
What is the median house price in Trevallyn?
The median house price is $705,500 in 2026, up from $600,000 in 2024 and $660,000 in 2025. Over 30 years prices have compounded at 7.0% a year. Weekly rent averages $300 and monthly mortgage repayments are about $1,387, a low 19.8% of household income.
What schools are in Trevallyn?
No schools are recorded inside the Trevallyn boundary in this dataset, so families rely on schools in neighbouring Launceston across the river. The resident base is well educated, with university qualifications at 42.0%, which is 11.9 points above the national figure.
Is Trevallyn safe?
Detailed crime statistics are not available for Trevallyn in this dataset. As an indirect indicator, the suburb scores decile 7 on the IRSD index of relative disadvantage, above the midpoint, and only 4.5% of its residents, 209 people, need daily assistance, both consistent with a low-disadvantage area.
Is Trevallyn good for property investment?
Rent of $300 a week against a $705,500 median gives a gross yield near 2.2%, and the 8.0% vacancy rate shows a soft tenant market. Renters are 26.2% of households. With population growth of just 0.21% a year, returns depend on the long-run 7.0% price CAGR rather than yield.
How is Trevallyn's population changing?
Population growth is 0.21% a year, about 10 residents, with a 4.0% rise over 10 years. Counts slipped from 4,905 in 2023 to 4,874 in 2025, and the medium forecast reaches 4,964 by 2031. The profile is aging, with the senior share up 4.7 points over the decade.
How to read these comparisons
Phrases like "above the national average" reference the unweighted median across Australian suburbs with more than 1,000 residents, not population-weighted national figures. Suburb-level medians are more useful for ranking suburbs against each other; ABS census headlines are population-weighted (so dominated by Sydney and Melbourne) and can read very differently.
Current baseline (refreshed 2026-05-10): median age 40, university-educated 30.1%, born overseas 21.6%, average household size 2.5 people.
Data sources: ABS 2021 Census (demographics, income, tenure), state Valuer-General (house prices), Department of Jobs SALM (unemployment), ACARA (school ICSEA), state Crime Statistics agencies (offences), council DA portals (development applications). Population forecasts use a Hamilton-Perry cohort model calibrated to ABS ERP.
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