WA 6123 Census 2021 + Live DA Data

Mundijong

With 100% of dwellings being separate houses and 52.9% having four or more bedrooms, Mundijong reads clearly as a family-oriented outer-fringe suburb rather than a conventional urban one. The population of 1,246 is small but growing fast: a 26% rise over the past decade driven by net internal migration of 130 people per year. The median house price of $487,000 sits below the WA median, yet household income is in the 65.7th percentile nationally, giving buyers more purchasing power than the price alone suggests. The suburb scores decile 10 on the IER index of economic resources, an unusually high result for a mortgage-belt community with 49.6% of homes carrying a loan.

Mundijong urban fabric map

Population

1,246

Median Age

40.0

Household IncomeiMedian weekly household income (ABS Census)

$1,823/wk

DAs (12 months)iDevelopment Applications lodged in the past year

0

Median House

$487K

Estimated from rent (2025)

18.37 km²· 67.8 people/km²· Family income $1,931/wk

At $487,000 the median house price in Mundijong is accessible compared to most Perth metro markets, and the mortgage-to-income ratio of 24.3% stays well below the 30% stress threshold, meaning buyers at the median can service debt comfortably. Every dwelling in the suburb is a separate house, which removes any apartment trade-off, and 52.9% of homes have four or more bedrooms, making larger family homes the standard rather than the exception. Monthly mortgage repayments average $1,920. Outright owners at 35.3% suggest a settled base of debt-free residents alongside the 49.6% carrying mortgages. Household income at the 65.7th percentile nationally means buyers here typically earn above average, supporting loan serviceability even as interest rates have risen since 2022.

For Buyers

At $487,000 the median house price in Mundijong is accessible compared to most Perth metro markets, and the mortgage-to-income ratio of 24.3% stays well below the 30% stress threshold, meaning buyers at the median can service debt comfortably. Every dwelling in the suburb is a separate house, which removes any apartment trade-off, and 52.9% of homes have four or more bedrooms, making larger family homes the standard rather than the exception. Monthly mortgage repayments average $1,920. Outright owners at 35.3% suggest a settled base of debt-free residents alongside the 49.6% carrying mortgages. Household income at the 65.7th percentile nationally means buyers here typically earn above average, supporting loan serviceability even as interest rates have risen since 2022.

For Investors

The investor picture in Mundijong is mixed. Only 15.1% of households rent, which is low compared to many suburban markets, so the tenant pool is thin. Weekly rent averages $385 and the vacancy rate sits at 7.6%, which is elevated and points to current oversupply relative to local rental demand. Against a $487,000 median, a $385 weekly rent implies a gross yield near 4.1%, better than many inner-metro suburbs. The main growth argument rests on migration: net internal migration averaged 130 people per year over the decade, and the medium forecast projects the local SA2 population reaching around 9,144 by 2031 from 8,298 in 2025. Gentrification signals are active, with population up 40% since 2011 and rent growth of 28.9% over the same period, both well above typical suburban benchmarks.

Schools in Mundijong iICSEA: school advantage index. 1000 = national avg, higher = more advantaged

Court Grammar School

ICSEA 1012 Combined Independent

PP-12 · 1022 students

Mundijong Primary School

ICSEA 963 Primary Government

K-6 · 250 students

Demographics

Mundijong has a median age of 40, equal to the national figure, but the trajectory is aging: the senior share rose 4.9 points while the young-adult share fell 2.3 points over the decade. Overseas-born residents account for 19.3% of the population, 2.3 points below the national average, and ancestry is strongly Anglo-Celtic, led by English (607), Irish (116) and Scottish (103), with Dutch (98) also well represented. Average household size of 2.8 is 0.3 above the national figure, consistent with the large-dwelling profile. University qualifications reach only 14.8%, which is 15.3 points below the national rate, reflecting the trade, construction and machinery occupations that dominate locally. Volunteering runs at 17.1%, showing a reasonably engaged community of 1,246 residents.

Age Distribution

0-14
20.5%
15-24
13.5%
25-44
22.1%
45-64
28.0%
65+
15.9%

Bedrooms

Studio/1br
0.7%
2 bed
6.3%
3 bed
40.0%
4+ bed
52.9%

Dwelling Structure

100.0%

Houses

N/A

Townhouse

N/A

Apartment

Tenure

Own 35.3% Mortgage 49.6% Rent 15.1%

Every one of Mundijong's dwellings is a detached separate house, a 100% figure uncommon even among outer suburban areas and well above any state or national benchmark. Bedroom size skews large: 52.9% of homes have four or more bedrooms and 40.0% have three, leaving only 6.3% with two bedrooms and under 1% at one bedroom. Tenure is owner-dominated: 35.3% own outright and 49.6% are paying a mortgage, leaving renters at just 15.1%. The housing stress indicators are benign, with mortgage-to-income at 24.3% and rent-to-income at 21.1%, both below the 30% stress threshold. The median house price of $487,000, estimated from 2025 rental data, places Mundijong in an affordable range compared to broader Perth markets. The high IER decile of 10 is consistent with the large, owned dwellings rather than high incomes alone.

Mortgage / mo

$1,920

Rent / wk

$385

HH Size

2.8

Personal Income / wk

$739

Vacancy Ratei% of dwellings unoccupied on Census night (ABS 2021)

7.6%

Unoccupied

34

Rent / IncomeiMedian rent as % of household income. Over 30% = housing stress

21.1%

Mortgage / IncomeiMedian mortgage as % of household income. Over 30% = housing stress

24.3%

Community Profile

Ancestry

English
607
Irish
116
Scottish
103
Dutch
98
Ancestry NS
89
Other
57

Household Composition

28.8%

Couples, no children

1,003

Total families

Economy & Employment

Construction is the dominant industry at 17.0% of employed residents (53 workers), followed by Healthcare at 14.1% (44) and Mining at 10.9% (34), with Education at 8.0% and Manufacturing at 7.7% rounding out the top five. By occupation, Labourers (87) and Machinery/Drivers (77) rank among the largest groups alongside Clerical/Admin (80), reflecting the blue-collar and trades character of the workforce. The full-time employment rate of 63.1% is solid, with 333 residents working full-time and 195 part-time. The unemployment rate is 5.5%, above the national average, and the participation rate of 56.2% is modest. On SEIFA, the IRSD decile of 7 and IRSAD decile of 6 place Mundijong in the middle tier for disadvantage nationally, consistent with a working-class outer-ring community with incomes at the 65.7th percentile.

Unemployment

3.4%

Labour Force

4,813

Unemployed

164

Quarterly Trend

Mar-24 Dec-25

Source: SALM Dec-25

Socio-Economic Indexes (SEIFA)iABS index ranking suburbs from 1 (most disadvantaged) to 10 (most advantaged)

Overall advantage
6
Disadvantage
7
Economic resources
10
Education & occupation
4

Full-time

63.1%

Part-time

31.4%

Participation

56.2%

Employed

528

Occupations

Labourers 87
Clerical/Admin 80
Machinery/Drivers 77
Community/Personal 62
Managers 47
Professionals 45
Sales 31

Top Industries

Construction 17.0%
Healthcare 14.1%
Mining 10.9%
Education 8.0%
Manufacturing 7.7%

University

14.8%

Postgraduate

2.1%

Born Overseas

19.3%

Dwellings

411

Transport to Work

Mundijong is car-dependent: 89.3% of residents commute by car and only 4.1% use public transport, compared to much higher public transport use in inner suburbs nationally. Cycling and walking account for 2.4% of trips. No schools are recorded inside the suburb boundary, so families rely on nearby towns for schooling. Crime statistics are not available in this dataset, so a direct safety comparison cannot be made. The IRSAD decile of 6 places the suburb in the middle range nationally, neither highly advantaged nor disadvantaged. Only 4.7% of residents (54 people) need assistance with daily activities. The housing stress figures are comfortable: mortgage-to-income at 24.3% and rent-to-income at 21.1% are both below the 30% stress threshold, meaning most households retain financial breathing room despite the area's mortgage-belt character.

Drive

89.3%

Public Transport

4.1%

Walk / Cycle

2.4%

Work from Home

N/A

Population Forecast

+1.96%/yr

(+163 people/yr)

Established

Mundijong grew 26% over the decade to 2021, driven primarily by internal migration averaging 130 net arrivals per year, with overseas migration adding a further 26 annually. The broader SA2 population reached 8,298 in 2025 and is forecast to climb to 9,144 by 2031 under the medium scenario, an annual rate of roughly 1.96%. Gentrification signals have moved from early to active: population rose over 40% since 2011, rent grew 28.9% across the period, and real income growth of 7.9% reflects real but moderate improvement. Affordability has been stable, shifting from 44.6% in 2011 to 43.3% in 2021, showing that income gains have broadly tracked price rises rather than falling behind. The aging trajectory (senior share up 4.9 points, working-age down 2.0 points) is a structural headwind for long-term rental demand from young families.

Historical + Forecast

Hamilton-Perry + Holt smoothing on ERP 2001-2025

Age Cohort Forecast

Primary Driver

Internal Migration

Net Overseas / yr

+26

Net Internal / yr

+130

45

Gentrification Signal

Active

Population +40% since 2011, Net internal migration +130/yr, Accelerating: 11% → 26%

National Ranking iPercentile rank among ~15,000 AU suburbs. 90% = higher than 90% of suburbs

How Mundijong compares to ~15,000 Australian suburbs

Population
Top 26%
Household Income
Top 34%
Rent Level
Top 19%
Renters
Bottom 34%
Uni Educated
Bottom 18%
Public Transport
Top 42%
Born Overseas
Top 32%
Density
Top 28%

Frequently Asked Questions

Is Mundijong a good suburb to live in?

Mundijong suits families who want space and affordability over urban convenience. Every dwelling is a separate house, 52.9% have four or more bedrooms, and the mortgage-to-income ratio of 24.3% is comfortably below the 30% stress threshold. The main trade-off is car dependence at 89.3% and no recorded schools inside the suburb boundary.

What is the median house price in Mundijong?

The median house price is $487,000, estimated from 2025 rental data. Monthly mortgage repayments average $1,920. Household income sits at the 65.7th percentile nationally, giving buyers reasonable purchasing power relative to the price. Weekly rent averages $385.

What schools are in Mundijong?

No schools are recorded inside the Mundijong suburb boundary in this dataset. Families rely on schools in nearby towns such as Byford or Serpentine. The suburb's university qualification rate of 14.8% is 15.3 points below the national average, reflecting a workforce concentrated in trades and construction.

Is Mundijong safe?

Detailed crime statistics for Mundijong are not available in this dataset, so a direct comparison cannot be made. Indirectly, the suburb scores decile 7 on the IRSD index of disadvantage nationally, placing it in the middle tier, and only 4.7% of the 1,246 residents need daily assistance, which is broadly consistent with a stable outer-fringe community.

Is Mundijong good for property investment?

The gross yield on a $487,000 median at $385 weekly rent is approximately 4.1%, higher than most inner-Perth suburbs. However, the vacancy rate of 7.6% is elevated, signalling current oversupply. Growth arguments are stronger: population rose 26% over the decade, rent grew 28.9%, and the medium SA2 forecast adds roughly 846 residents by 2031.

How is Mundijong's population changing?

Mundijong grew 26% over the past decade, driven by net internal migration of 130 people per year. The broader SA2 population reached 8,298 in 2025 and is forecast to hit 9,144 by 2031 under the medium scenario, an annual growth rate of 1.96%. The profile is aging, with the senior share up 4.9 points since 2011.

What industries employ residents in Mundijong?

Construction is the largest sector at 17.0% of workers (53 residents), followed by Healthcare at 14.1% (44) and Mining at 10.9% (34). Education employs 8.0% and Manufacturing 7.7%. The full-time employment rate is 63.1%, though the unemployment rate of 5.5% is above the national average.

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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