Irwin

Western Australia · Western Australia - Outback (South) · 3,680 people · 12 suburbs · 1 postcodes

Council-area profile

Irwin suburb map and local data

Use this LGA hub to move from a council-area view into suburb profiles, postcode coverage, schools, SEIFA and nearby council areas.

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Irwin at a glance

3,680

Population

#63 of 123 in WA

2,369

km² area

2/km² density

52.8

Median age

+13.7 vs WA

931

SEIFA IRSAD

#97 of 123 in WA

Schools

1 gov, 0 Cath, 0 indep

12.4%

Born overseas

25.4%

Renting

Interactive map

Irwin boundary and suburb markers

Boundary source: ABS ASGS 2021. Map tiles: OpenStreetMap contributors.

LGA boundary Suburb markers Federal electorate overlay

Map shows the Irwin LGA boundary in blue with a marker per suburb. Hover for suburb name, click for details.

Marker colour reflects SEIFA IRSAD decile: ● 1-2 (most disadvantaged), ● 3-4, ● 5-6, ● 7-8, ● 9-10 (most advantaged).

Federal electorate boundaries can be toggled on the map. Boundary source: ABS ASGS 2021 CED boundaries.

Irwin is a Local Government Area in Western Australia, in the Perth region. It covers 12 suburbs across 1 postcodes and an area of 2,369 km². Irwin has a population of 3,680 , ranking #63 most populous in WA. The most populous suburb is Port Denison (1,452 residents).About 12.4% of residents were born overseas and 2.1% speak a language other than English at home.

Who lives here

Age structure

15.0%

8.3%

15.7%

30.8%

30.2%

0–14 (15.0%) 15–24 (8.3%) 25–44 (15.7%) 45–64 (30.8%) 65+ (30.2%)

Show counts

0–14 years	551 (15.0%)
15–24 years	303 (8.3%)
25–44 years	575 (15.7%)
45–64 years	1,132 (30.8%)
65+ years	1,109 (30.2%)

12.4%

Born overseas

2.1%

Speak a language other than English at home

3.9%

First Nations

2.2

Avg household size

How they live

Housing tenure

47.9%

26.6%

25.4%

Owned outright (47.9%) Mortgaged (26.6%) Renting (25.4%)

Dwelling type mix

91.6%

Separate house (91.6%) Semi/townhouse (7.2%) Flat/apartment (1.2%)

$251

Median weekly rent

$1,539

Median monthly mortgage

38.9%

Households with 0-1 cars

61.1%

Households with 2+ cars

Work and learning

4.1%

Unemployment rate

803

In full-time work

518

In part-time work

Schools in Irwin

1 schools across Irwin: 100.0% Government, 0% Catholic, 0% Independent. The WA average is 71.4% / 14.1% / 14.5%. Schools here have a median ICSEA of 945 (range 945 to 945). WA median is 1006; national mean is 1000.

Sector mix

100.0%

WA average for comparison

71.4%

14.1%

14.5%

Government Catholic Independent

Type breakdown

100.0%

Primary (0%) Secondary (0%) Combined (100.0%) Special (0%)

ICSEA range

700 National mean 1000 1300

LGA median 945 WA median 1006LGA range 945 to 945

ICSEA (Index of Community Socio-Educational Advantage) summarises the socio-economic background of each school's families. Higher values indicate more advantage. Source: ACARA 2025.

All 1 schools in Irwin, sorted by enrolment:

School	Sector	Type	Suburb	Students	ICSEA
Dongara District High School	Government	Combined	Dongara	342	945

Source: ACARA School Profiles 2025. ICSEA shown where reported; some schools (notably small primaries) do not publish ICSEA.

SEIFA socio-economic indexes

SEIFA 2021 ranks Australian areas across four dimensions. Scores are population-weighted averages of suburb-level SEIFA scores within Irwin. Higher scores indicate more advantage; the national mean is 1000.

IRSAD

Relative socio-economic advantage and disadvantage

931

Ranked #97 of 123 WA LGAs

IRSD

Relative disadvantage only (lower = more disadvantaged)

966

IER

Economic resources: income, wealth, housing

984

IEO

Education and occupation: qualifications, skill levels

898

Suburbs in Irwin

Irwin contains 12 suburbs and 1 postcodes. Sorted by population.

Suburb	Postcode	Population	Median income	Median age
Port Denison	6525	1,452	$1,027/wk	56
Dongara	6525	1,393	$1,092/wk	51
Springfield	6525	276	$1,625/wk	50
Bonniefield	6525	217	$1,416/wk	51
Bookara	6525	149	$1,542/wk	48
Irwin	6525	72	$1,312/wk	55
Yardarino	6525	48	$1,468/wk	55
Allanooka	6525	19	$1,875/wk	43
Arrowsmith	6525	17	$1,375/wk	50
Milo	6525	16	$1,999/wk	40
Mount Horner	6525	13	$1,875/wk	52
Mount Adams	6525	8	$1,374/wk	55

Postcodes covered

6525

Compare Irwin with neighbouring LGAs

Side-by-side demographic and socio-economic snapshot of Irwin and its closest neighbouring LGAs.

LGA	Population	Median age	SEIFA IRSAD	% renting	% overseas-born
Irwin (WA)	3,680	52.8	931	25.4%	12.4%
Greater Geraldton	39,670	40.5	942	30.6%	14.2%

Services and amenities

Climate & weather Climate data for Port Denison

Frequently asked questions about Irwin

What is the population of Irwin?

The 2021 Census recorded 3,680 people living in Irwin, across 12 suburbs.

What suburbs are in Irwin?

Irwin contains 12 suburbs. The most populous are Port Denison, Dongara, Springfield, Bonniefield, Bookara.See the full list in the Suburbs section above.

What postcodes are in Irwin?

Irwin covers 1 postcodes: 6525.

How many schools are in Irwin?

Irwin has 1 schools, including 1 government, 0 Catholic, and 0 independent schools (ACARA 2025).

What is the SEIFA score for Irwin?

Irwin has a population-weighted SEIFA IRSAD score of 931, where the national average is 1000. Higher scores indicate more relative advantage.

Page last reviewed June 2026. Data sources: Australian Bureau of Statistics 2021 Census (CC BY 4.0), SEIFA 2021 (IRSD, IRSAD, IER, IEO), ACARA School Profiles 2025, ABS ASGS 2021 LGA boundaries. How this data is sourced.