Suburb profile · ABS Census 2021
Boulder suburb profile
Boulder, WA · Postcode 6432
This Boulder suburb profile summarises official Australian Bureau of Statistics Census 2021 data for Boulder, WA (postcode 6432). 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 Boulder with nearby suburbs.
Boulder at a glance
Population
4,872
Median rent
$300/wk
Household income
$1,968/wk
Median age
35
Boulder 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
-9.1% over 10 years
Population
4,872
was 4,825 in 2016
+47 · +1%
Median rent
$300/wk
was $273/wk in 2016
+$27 · +9.9%
Household income
$1,968/wk
was $1,753/wk in 2016
+$215 · +12.3%
Median age
35
was 33 in 2016
+2 · +6.1%
Dig deeper: Boulder population growth · Boulder then and now
Boulder vs nearby & WA
Median Census 2021 figures for Boulder, nearby suburbs (8), and the WA state median (suburbs with 1,000+ people).
Rent
-14.3% vs area
- Boulder$300/wk
- Nearby$300/wk
- WA$350/wk
Household income
+6.9% vs area
- Boulder$1,968/wk
- Nearby$2,199.5/wk
- WA$1,841/wk
Median age
-10.3% vs area
- Boulder35
- Nearby33.5
- WA39
Personal income
+19.3% vs area
- Boulder$1,019/wk
- Nearby$1,155/wk
- WA$854/wk
Nearby uses the same postcode first, then larger suburbs in WA.
Socio-economic profile
How Boulder compares to other Australian suburbs on income, education and occupation — from official ABS SEIFA 2021 data.
Boulder sits below average for socio-economic advantage compared with suburbs Australia-wide. It shows limited economic resources and lower education and occupation levels.
Relative disadvantage (IRSD)
Decile 2951.3
Lower score / decile = more relative disadvantage
Advantage & disadvantage (IRSAD)
Decile 2911.4
Higher score / decile = more relative advantage
Economic resources (IER)
Decile 2961.8
Access to economic resources (income, housing)
Education & occupation (IEO)
Decile 1849.8
Education and occupational skill levels
Source: ABS SEIFA 2021. See methodology.
Boulder on the map
OpenStreetMap outline for Boulder, WA.
Map data © OpenStreetMap contributors. Boundary matching is approximate.
Boulder people
- Population
- 4,872
- Median age
- 35
- Born overseas
- 18.3%
- Average household size
- 2.4
Total usual residents (Census 2021)
Median age of residents in years
Percentage born outside Australia
Average number of people per household
Boulder income
- Median household income
- $1,968/wk
- Median personal income
- $1,019/wk
Median total weekly household income
Median total weekly personal income
Boulder housing
- Median rent
- $300/wk
- Median mortgage repayment
- $1,302/mo
- Separate houses
- 69.3%
- Flats & apartments
- 0%
- Owned outright
- 17.5%
- Mortgaged
- 34.9%
- Rented
- 29.1%
- Unoccupied dwellings
- 15.3%
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
Boulder work
- Employment to population
- 59.3%
- Unemployment rate
- 4.7%
- Year 12 or above
- 33.8%
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 6432)
Compare Boulder with nearby suburbs
Boulder in numbers
Boulder had 4,872 residents at the 2021 Census, making it the 191st most populous suburb or locality in WA out of 1,594. The median age is 35, 12% below the typical WA suburb. The average household has 2.4 people. 18.3% of residents were born overseas.
Among occupied homes, 17.5% own their home outright, 34.9% are paying a mortgage, 29.1% rent. Separate houses make up 69.3% of dwellings, with 0% in flats or apartments. Median rent was $300/wk, 12% below the typical WA suburb.
Median household income was $1,968/wk, 10% above the typical WA suburb. The unemployment rate on Census night was 4.7%. 33.8% of adults had completed Year 12 or above. On the ABS SEIFA index of relative socio-economic disadvantage it sits in decile 2 nationally (1 is most disadvantaged, 10 least).
Between the 2016 and 2021 Censuses the population grew 1% (from 4,825 to 4,872). Median rent moved from $273/wk to $300/wk (+9.9%).
Boulder suburb FAQs
- What is the median rent in Boulder, WA?
- The median weekly rent in Boulder was $300/wk at the 2021 Census (ABS).
- How many people live in Boulder, WA?
- Boulder had 4,872 residents at the 2021 Census, up 1% from 2016.
- What is the median household income in Boulder?
- Median household income in Boulder was $1,968/wk at the 2021 Census.
- Do most people rent or own in Boulder?
- 29.1% of occupied homes in Boulder were rented, 17.5% were owned outright and 34.9% were owned with a mortgage.
About this Boulder suburb profile
Figures are from the ABS Census of Population and Housing 2021 (General Community Profile) for the Suburbs and Localities boundary matching Boulder. 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