Trevallyn, TAS
By Lauren McCaleb · Reviewed by Dylan Duncan ·
Trevallyn is a residential suburb on the western edge of Launceston, set above the meeting of the South Esk and Tamar Rivers and split between the Launceston and West Tamar council areas. Gazetted as a locality in 1963, it takes its name from Trevallyn in Cornwall — in the Cornish tongue 'tre' means a town or settlement and the second part derives from a word for a mill. A curiosity of its past is that the local post office of the 1930s used the name spelled backwards, Nyllavert, which still lingers in some old lists of places. The suburb is best known as the gateway to the Cataract Gorge, the dramatic river gorge that is one of Launceston's great natural landmarks, and to the Trevallyn Dam and the bushland of the Trevallyn Nature Recreation Area, used for trail running, horse riding and mountain biking. The novelist Katharine Susannah Prichard spent part of her childhood here, and the Trevallyn Cricket Club has played at the Gorge Road oval since 1929.
More advantaged than the national average
Trevallyn is more socio-economically advantaged than about 66% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 1015, where about 1000 is the national average).
A socio-economic measure from ABS Census data — not a measure of how good a suburb is to live in or visit. How we calculate this.
Is Trevallyn a good place to live?
There’s no single answer — it depends on what matters to you. So instead of one mystery number, we break it down: a transparent score on each part of life we can back with public data, and an honest “not yet” on the parts we can’t.
Around the national middle
A weighted blend of the 2 components we can score for Trevallyn from public data. It sits alongside — and reconciles with — the socio-economic Suburb Score above; it is a transparent read, not a complete verdict.
Socio-economic advantage
66/100More advantaged than the national average
More advantaged than the national average — the same ABS SEIFA-based Suburb Score (66/100) shown above. Income, education and occupation, as published by the ABS. · ABS SEIFA 2021
Housing affordability
47/100Around the national median for cost
Median weekly rent was $300 at the 2021 Census — more affordable than about 47% of suburbs we can compare. Housing data only, no valuations. · ABS Census 2021
Not yet scored
We’d rather leave these open than publish a number we can’t stand behind. Here’s where each one stands.
- Amenities & accessNot scored yet — our OpenStreetMap amenity mapping is still rolling out across suburbs.
- Green spaceNot scored yet — our OpenStreetMap green-space mapping is still rolling out across suburbs.
- TransportNot scored yet — our OpenStreetMap public-transport mapping is still rolling out across suburbs.
- SchoolsNot scored yet — school performance (ACARA / ICSEA) needs a data-reuse licence cleared before we can publish it.
- SafetyNot scored yet — Australia has no single open crime dataset and safety data carries defamation and legal care, so it is gated pending a go/no-go and will be data-only when added.
- CommunityNot scored yet — we won't reduce community to a number from a proxy. We'd rather leave it open than publish an invented value judgement.
A transparent read on public data, not a verdict — and not a measure of any person or community. See our methodology for how each component is worked out and why some aren’t scored yet.
Trevallyn at a glance
- Population (2021)
- 4,826
- Median age
- 40
- Median weekly household income
- $1,614
- SEIFA score
- 1015
- Local government area
- West Tamar
- Coordinates
- -41.4425, 147.1004
Map of Trevallyn
© OpenStreetMap contributors · View larger map
Housing & property in Trevallyn
What it costs to live in Trevallyn and how residents hold their homes, from the Australian Bureau of Statistics 2021 Census.
- Median rent
- $300
- per week
- Median mortgage
- $1,387
- per month
- Owner-occupied
- 73%
- of dwellings
- Rented
- 26%
- of dwellings
The full tenure and dwelling-type breakdown is in the Trevallyn demographics section below.
Source: ABS Census of Population and Housing, 2021. © Australian Bureau of Statistics, released under CC BY 4.0. See our methodology.
Trevallyn demographics (2021 Census)
The figures below profile Trevallyn using the Australian Bureau of Statistics 2021 Census; every percentage is a share of a clearly stated Census count, so each one traces back to the source. At a glance, the largest age group is mid-life (45–64) at 27% and 17% of residents were born overseas.
Age profile
| Age group | People | Share |
|---|---|---|
| Children (0–14) | 888 | 18% |
| Youth (15–24) | 548 | 11% |
| Young adults (25–44) | 1,257 | 26% |
| Mid-life (45–64) | 1,308 | 27% |
| Seniors (65+) | 842 | 17% |
Share of the 4,843 people counted by age.
Housing and households
| Tenure | Dwellings | Share |
|---|---|---|
| Owned outright | 705 | 37% |
| Owned with a mortgage | 683 | 36% |
| Rented | 492 | 26% |
| Dwelling type | Dwellings | Share |
|---|---|---|
| Houses | 1,752 | 92% |
| Townhouses & semis | 104 | 5% |
| Flats & apartments | 58 | 3% |
Tenure and dwelling shares are of the roughly 1,914 occupied private dwellings in Trevallyn.
- Average household size
- 2.4 people
- Median weekly family income
- $2,111
- Median weekly personal income
- $845
Community and culture
- Born overseas
- 788 (17%)
- Speaks a language other than English at home
- 375 (8%)
- Aboriginal and/or Torres Strait Islander
- 116 (2%)
Work and education
- Completed Year 12
- 2,285 (61%)
- Labour-force participation
- 66%
- Unemployment rate
- 4.9%
- Employed full-time
- 1,402
- Employed part-time
- 951
Source: ABS Census of Population and Housing, 2021 (General Community Profile, by Suburb and Locality). © Australian Bureau of Statistics, released under CC BY 4.0. How we group bands and derive each share is set out on our methodology page.
Weather and climate in Trevallyn
Based on 2014–2023 records, the warmest month in Trevallyn is January (average daytime high around 24°C) and the coolest is July (around 10.9°C). The area receives roughly 778 mm of rain across the year.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 24°C | 12.2°C | 54 mm |
| Feb | 22.6°C | 11.6°C | 53 mm |
| Mar | 20.6°C | 10.3°C | 61 mm |
| Apr | 17.1°C | 7.5°C | 53 mm |
| May | 13.6°C | 5.2°C | 72 mm |
| Jun | 11.4°C | 3.4°C | 72 mm |
| Jul | 10.9°C | 3°C | 89 mm |
| Aug | 11.8°C | 2.8°C | 68 mm |
| Sep | 14.1°C | 4.3°C | 59 mm |
| Oct | 16.4°C | 6°C | 82 mm |
| Nov | 19°C | 8.3°C | 50 mm |
| Dec | 21.6°C | 10.1°C | 65 mm |
Climate normals, 2014–2023 (Open-Meteo, ERA5 reanalysis).
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Common questions about Trevallyn
Is Trevallyn a good place to live?
There's no single answer, so we score what the public data can back. On socio-economic advantage and housing affordability, Trevallyn rates 60/100 overall (Around the national middle). Public transport, schools and safety aren't scored yet — see our methodology for why.
What is the median rent in Trevallyn?
At the 2021 Census, the median weekly rent in Trevallyn was $300, and the median monthly mortgage repayment was $1,387. These are official ABS Census figures — StreetScout publishes housing data only, with no property valuations or agent referrals.
Where is Trevallyn?
Trevallyn is a suburb of Tasmania, Australia, in the West Tamar local government area.
What is the population of Trevallyn?
At the 2021 Census, Trevallyn had a population of about 4,826.
Is Trevallyn an advantaged area?
Trevallyn has an ABS SEIFA score of 1015, where about 1000 is the national average — higher scores indicate greater relative socio-economic advantage. That gives it a Suburb Score of 66 out of 100 — more socio-economically advantaged than about 66% of Australian suburbs.
What is the weather like in Trevallyn?
Trevallyn has average daytime highs of about 16.9°C and overnight lows of about 7.1°C, with roughly 778 mm of rain across the year (based on 2014–2023 climate normals).
How big is Trevallyn?
Trevallyn is one of the most populous suburbs in Tasmania — the 25th-largest by usual resident population at the 2021 Census (about 4,826 usual residents).
Does Trevallyn have high household incomes?
Trevallyn has one of the highest median weekly household incomes in Tasmania — the 22nd-highest among suburbs with at least 1,000 residents at the 2021 Census ($1,614 per week).
Where Trevallyn ranks
Trevallyn appears in these data-driven guides — each a transparent sort on a single ABS figure shown on this page.
Nearby suburbs in Tasmania
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Other hand-written, cited guides — browse all guides.