Suburb profile · ABS Census 2021
Treeby suburb profile
Treeby, WA · Postcode 6164
This Treeby suburb profile summarises official Australian Bureau of Statistics Census 2021 data for Treeby, WA (postcode 6164). Use it as a free suburb report covering population, median rent, household income, age, housing tenure and employment, plus how those figures changed since Census 2016— then compare Treeby with nearby suburbs.
Treeby at a glance
Population
4,214
Median rent
$450/wk
Household income
$2,479/wk
Median age
32
Treeby trends (2016 → 2021)
Change since the previous Census. Historical figures are mapped from State Suburbs (SSC) to today's suburb boundaries.
Population
Census 2011 → 2016 → 2021
+568.9% over 10 years
Population
4,214
was 2,085 in 2016
+2,129 · +102.1%
Median rent
$450/wk
was $440/wk in 2016
+$10 · +2.3%
Household income
$2,479/wk
was $2,250/wk in 2016
+$229 · +10.2%
Median age
32
was 34 in 2016
-2 · -5.9%
Dig deeper: Treeby population growth · Treeby then and now
Treeby vs nearby & Greater Perth
Median Census 2021 figures for Treeby, nearby suburbs (8), and the Perth metro median (suburbs with 1,000+ people).
Rent
+23.3% vs area
- Treeby$450/wk
- Nearby$400/wk
- Perth$365/wk
Household income
+25.1% vs area
- Treeby$2,479/wk
- Nearby$2,277.5/wk
- Perth$1,982/wk
Median age
-17.9% vs area
- Treeby32
- Nearby34.5
- Perth39
Personal income
+35.1% vs area
- Treeby$1,197/wk
- Nearby$961.5/wk
- Perth$886/wk
Nearby uses the same postcode first, then larger suburbs in WA. See Perth rankings.
Socio-economic profile
How Treeby compares to other Australian suburbs on income, education and occupation — from official ABS SEIFA 2021 data.
Treeby ranks among Australia's most advantaged suburbs. It shows strong access to economic resources and high education and occupation levels.
Relative disadvantage (IRSD)
Decile 101,104.9
Lower score / decile = more relative disadvantage
Advantage & disadvantage (IRSAD)
Decile 101,091
Higher score / decile = more relative advantage
Economic resources (IER)
Decile 101,104.9
Access to economic resources (income, housing)
Education & occupation (IEO)
Decile 91,069.2
Education and occupational skill levels
Source: ABS SEIFA 2021. See methodology.
Treeby on the map
OpenStreetMap outline for Treeby, WA.
Map data © OpenStreetMap contributors. Boundary matching is approximate.
Treeby people
- Population
- 4,214
- Median age
- 32
- Born overseas
- 45.5%
- Average household size
- 2.7
Total usual residents (Census 2021)
Median age of residents in years
Percentage born outside Australia
Average number of people per household
Treeby income
- Median household income
- $2,479/wk
- Median personal income
- $1,197/wk
Median total weekly household income
Median total weekly personal income
Treeby housing
- Median rent
- $450/wk
- Median mortgage repayment
- $2,000/mo
- Separate houses
- 73.8%
- Flats & apartments
- 0.3%
- Owned outright
- 14.5%
- Mortgaged
- 63.8%
- Rented
- 14.5%
- Unoccupied dwellings
- 6.3%
Median weekly rent for rented dwellings
Median monthly mortgage repayment
Percentage of dwellings that are separate houses
Percentage of dwellings that are flats or apartments
Percentage of dwellings owned without a mortgage
Percentage of dwellings with a mortgage
Percentage of dwellings rented
Percentage of private dwellings unoccupied on Census night
Treeby work
- Employment to population
- 72.9%
- Unemployment rate
- 2.9%
- Year 12 or above
- 71.7%
Employed persons as a percentage of population aged 15+
Unemployed persons as a percentage of the labour force
Percentage with Year 12 or equivalent as highest school level
Nearby suburb profiles (near 6164)
Compare Treeby with nearby suburbs
Treeby in numbers
Treeby had 4,214 residents at the 2021 Census, making it the 219th most populous suburb or locality in WA out of 1,594. The median age is 32, 20% below the typical WA suburb. The average household has 2.7 people. 45.5% of residents were born overseas.
Among occupied homes, 14.5% own their home outright, 63.8% are paying a mortgage, 14.5% rent. Separate houses make up 73.8% of dwellings, with 0.3% in flats or apartments. Median rent was $450/wk, 32% above the typical WA suburb.
Median household income was $2,479/wk, 39% above the typical WA suburb. The unemployment rate on Census night was 2.9%. 71.7% of adults had completed Year 12 or above. On the ABS SEIFA index of relative socio-economic disadvantage it sits in decile 10 nationally (1 is most disadvantaged, 10 least).
Between the 2016 and 2021 Censuses the population grew 102.1% (from 2,085 to 4,214). Median rent moved from $440/wk to $450/wk (+2.3%).
Treeby suburb FAQs
- What is the median rent in Treeby, WA?
- The median weekly rent in Treeby was $450/wk at the 2021 Census (ABS).
- How many people live in Treeby, WA?
- Treeby had 4,214 residents at the 2021 Census, up 102.1% from 2016.
- What is the median household income in Treeby?
- Median household income in Treeby was $2,479/wk at the 2021 Census.
- Do most people rent or own in Treeby?
- 14.5% of occupied homes in Treeby were rented, 14.5% were owned outright and 63.8% were owned with a mortgage.
About this Treeby suburb profile
Figures are from the ABS Census of Population and Housing 2021 (General Community Profile) for the Suburbs and Localities boundary matching Treeby. Where shown, 2016 values come from the 2016 State Suburbs (SSC) profile, linked via ABS geographic correspondence — boundaries are not always identical. Medians may be suppressed for very small areas. This is not financial or relocation advice — use it alongside current market data.
Source: ABS Census 2021. Methodology · Richest suburbs in Perth