Boulder, WA: suburb profile

The population of Boulder WA is 4,872 according to the 2021 Census. The median personal income in Boulder is $1,019 per week ($52,988 per year). Median rent in Boulder is $300 per week ($1,300 per month). Boulder has a median age of 35 years, younger than the national median of 38. Boulder has a population density of 1,107 people per km².

The most common overseas birthplace in Boulder is England. The most common religion is No religion (46.6% of residents). After English, the most spoken language is Tagalog. The median monthly mortgage repayment in Boulder is $1,302.

Source: ABS Census of Population and Housing 2021.

Boulder Map

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Boulder Population

4,872 residents at the 2021 Census.

Boulder Median Income & Rent

Median Income

$1,019/wk

$52,988 per year

Ranked 1,109 of 14,663

Median Rent

$300/wk

$1,300 per month

Ranked 4,529 of 14,663

Median Age

35years

3 years younger than the national median

Mortgage

$1,302/mo

Avg household size: 2.4 · 0.8 per bedroom

Boulder Demographics

Gender Split

Male 53.5% (2,607) Female 46.5% (2,269)

Population Density

1,107

people per km²

4,872 people · 4.4 km²

Households

2.4

Avg household size

0.8

Persons per bedroom

$2,337

Family income/wk

Boulder Age Distribution

0-4

5-9

10-14

15-19

20-24

25-29

30-34

35-39

40-44

45-49

50-54

55-59

60-64

65-69

70-74

75-79

80-84

85+

Male Female

Source: ABS Census 2021, Suburb and Locality (SAL)

Boulder Home Ownership

Of owner-occupied homes in Boulder, 33.4% are owned outright and 66.6% have a mortgage.

Owned outright

33.4%

Owned with mortgage

66.6%

Rented homes are not included in this breakdown.

Source: ABS Census 2021, Suburb and Locality (SAL)

Most common overseas birthplaces

England
India
China
Germany
Indonesia
Fiji

Source: ABS Census 2021, G09 Country of Birth by SAL

Boulder Religion

No religion

46.6%

Not stated

17.9%

Catholic

15.6%

Anglican

6.0%

Christian (other)

3.3%

Baptist

1.4%

Uniting Church

1.0%

Buddhism

1.0%

Source: ABS Census 2021, G14 Religion by SAL

Boulder Education Level

Year 12 or equivalent

42.6%

Year 10 or equivalent

35.5%

Year 11 or equivalent

15.6%

Year 9 or equivalent

6.2%

Shares are of people whose highest year of school is Year 9 to 12 only. Source: ABS Census 2021, G16 Highest Year of School by SAL

Most common languages at home other than English

Tagalog
Filipino
Afrikaans
Australian Indigenous languages
Hindi
Thai

Source: ABS Census 2021, G13 Language Spoken at Home by SAL

Boulder Employment

Employed full-time

52.0% 1,562 people

Employed part-time

17.9% 539 people

Unemployed

3.6% 107 people

Not in labour force

26.5% 796 people

Source: ABS Census 2021, G46 Labour Force Status by SAL

Boulder Qualifications

Certificate III/IV

64.0%

Advanced Diploma/Diploma

13.7%

Bachelor Degree

13.1%

Certificate I/II

5.2%

Postgraduate Degree

2.4%

Graduate Diploma/Certificate

1.7%

Source: ABS Census 2021, G49 Non-School Qualification by SAL

Boulder Occupation

Technicians & Trade Workers

34.1%

Machinery Operators & Drivers

14.7%

Professionals

12.1%

Community & Personal Service

10.7%

Clerical & Administrative

10.2%

Managers

6.8%

Labourers

6.4%

Sales Workers

5.0%

Source: ABS Census 2021, G51 Industry of Employment by Occupation

Boulder Field of Study

Engineering

40.9%

Management & Commerce

15.0%

Food, Hospitality & Personal Services

8.8%

Health

8.3%

Society & Culture

8.3%

Education

6.8%

Architecture & Building

4.8%

Natural & Physical Sciences

2.6%

Information Technology

1.6%

Agriculture & Environment

1.6%

Creative Arts

1.3%

Source: ABS Census 2021, G51 Field of Study by SAL

Boulder Dwelling Types

Separate house

83.9%

Semi-detached (1 storey)

14.7%

Semi-detached (2+ storey)

1.4%

Source: ABS Census 2021, G36 Dwelling Structure by SAL

Boulder Weekly Household Income

Nil/Negative/wk

1.4%

$1-$149/wk

0.6%

$150-$299/wk

1.6%

$300-$399/wk

2.4%

$400-$499/wk

4.5%

$500-$649/wk

3.5%

$650-$799/wk

4.5%

$800-$999/wk

5.2%

$1,000-$1,249/wk

6.9%

$1,250-$1,499/wk

6.3%

$1,500-$1,749/wk

6.6%

$1,750-$1,999/wk

7.0%

$2,000-$2,499/wk

16.0%

$2,500-$2,999/wk

8.9%

$3,000-$3,499/wk

8.6%

$3,500-$3,999/wk

4.7%

$4,000+/wk

11.3%

Source: ABS Census 2021, G33 Household Income by SAL

Boulder Marital Status

Married

34.9% 1,316

Separated

4.7% 176

Divorced

10.4% 391

Widowed

3.3% 125

Never married

46.7% 1,761

Source: ABS Census 2021, G05 Marital Status by SAL

Boulder Ancestry

English

33.5%

Australian

32.7%

Scottish

8.4%

Irish

8.4%

Australian Aboriginal

8.1%

Maori

4.2%

German

3.4%

Filipino

2.9%

Italian

2.4%

New Zealander

1.9%

Dutch

1.3%

Shares are of the suburb population. People can report up to two ancestries, so shares add to more than 100%. Source: ABS Census 2021, G08 Ancestry by SAL

Boulder School & University Attendance

Primary — Government

40.0%

Secondary — Government

22.3%

Vocational Education

12.8%

Pre-school

8.6%

Primary — Catholic

7.7%

Secondary — Catholic

5.7%

Primary — Other Non-Govt

1.5%

Secondary — Other Non-Govt

1.4%

Source: ABS Census 2021, G15 Type of Educational Institution by SAL

Boulder Need for Assistance

Needs assistance

4.1%

No need for assistance

95.9%

Source: ABS Census 2021, G18 Core Activity Need for Assistance by SAL

Boulder Volunteering

Volunteer

10.7% 335

Not a volunteer

89.3% 2,798

Source: ABS Census 2021, G23 Voluntary Work by SAL

Boulder Monthly Mortgage Repayments

$0-$299/mo

4.7%

$300-$449/mo

1.3%

$450-$599/mo

2.3%

$600-$799/mo

7.7%

$800-$999/mo

10.6%

$1,000-$1,399/mo

27.4%

$1,400-$1,799/mo

21.9%

$1,800-$2,399/mo

18.2%

$2,400-$2,999/mo

2.7%

$3,000-$3,999/mo

3.3%

Source: ABS Census 2021, G38 Mortgage Repayment by SAL

Boulder How People Get to Work

Car (driver)

72.3%

Did not go to work

10.4%

Car (passenger)

8.8%

Bus

2.5%

Walked only

2.1%

Truck

1.4%

Other

0.9%

Taxi/Rideshare

0.9%

Motorbike/Scooter

0.4%

Bicycle

0.4%

Source: ABS Census 2021, G62 Method of Travel to Work by SAL

Boulder Car Ownership

0 vehicles

5.8%

1 vehicle

32.9%

2 vehicles

36.7%

3 vehicles

15.7%

4+ vehicles

8.9%

Source: ABS Census 2021, G34 Motor Vehicles per Dwelling by SAL

Boulder Number of Bedrooms

1 bedroom

5.4%

2 bedrooms

12.3%

3 bedrooms

52.1%

4 bedrooms

26.3%

5 bedrooms

2.9%

6+ bedrooms

1.1%

Source: ABS Census 2021, G41 Number of Bedrooms by SAL

Boulder Population Mobility

18.3%

moved in the last year

45.5%

moved in the last 5 years

4.6%

unemployment rate (Census)

62.2%

labour force participation

Source: ABS Census 2021, G43 Summary by SAL

Boulder Indigenous Population

10.0%

Aboriginal & Torres Strait Islander

Source: ABS Census 2021, G07 Indigenous Status by SAL

Boulder Long-term Health Conditions

Mental health

351

Asthma

143

Diabetes

128

Arthritis

126

Heart disease

Lung condition

Kidney disease

Cancer

Stroke

Dementia

Source: ABS Census 2021, G19 Long-term Health Conditions by SAL

Boulder Personal Weekly Income Distribution

$0 or less/wk

10.7%

$1-$149/wk

3.5%

$150-$299/wk

5.2%

$300-$399/wk

2.9%

$400-$499/wk

2.9%

$500-$649/wk

2.2%

$650-$799/wk

7.3%

$800-$999/wk

7.9%

$1,000-$1,249/wk

10.7%

$1,250-$1,499/wk

8.3%

$1,500-$1,749/wk

8.7%

$1,750-$1,999/wk

8.3%

$2,000-$2,999/wk

16.2%

$3,000-$3,499/wk

3.2%

$3,500+/wk

2.1%

Source: ABS Census 2021, G17 Personal Income by SAL

Boulder Family Structure

Couple — children under 15

46.7%

Couple — no children

24.6%

One parent — children under 15

12.0%

Couple — no children under 15

10.0%

One parent — no children under 15

6.7%

Source: ABS Census 2021, G29 Family Composition by SAL

Boulder Military Service

Previously served

3.3% 105

Never served

96.7% 3,047

Source: ABS Census 2021, G22 ADF Service by SAL

Boulder Unpaid Carers

Provided unpaid assistance

9.2% 287

Did not provide

90.8% 2,828

Source: ABS Census 2021, G25 Unpaid Assistance by SAL

Boulder Children Ever Born

No children

31.0%

1 child

12.5%

2 children

25.3%

3 children

18.7%

4 children

9.6%

5+ children

2.7%

Source: ABS Census 2021, G28 Children Ever Born by SAL

Boulder When Migrants Arrived

Before 1951

1951–1960

1961–1970

1971–1980

1981–1990

1991–2000

105

2001–2010

256

2011–2015

164

2016

2017

2018

2019

2020

2021

Source: ABS Census 2021, G10 Year of Arrival by SAL

Boulder Unpaid Domestic Work

Less than 5 hours

20.3%

5–14 hours

27.6%

15–29 hours

9.9%

30+ hours

9.6%

Did not do domestic work

32.6%

Source: ABS Census 2021, G24 Unpaid Domestic Work by SAL

Boulder Household Size

1 person

30.2%

2 persons

32.6%

3 persons

14.5%

4 persons

13.0%

5 persons

6.4%

6+ persons

3.3%

Source: ABS Census 2021, G35 Household Size by SAL

Boulder Where Residents Moved From

Same address

3,289

Moved from WA

402

Moved — same area (SA2)

196

Moved from overseas

Moved from NSW

Moved from QLD

Moved from VIC

Moved from SA

Moved from TAS

Source: ABS Census 2021, G44 Address 1 Year Ago by SAL

Boulder Family Blending

Intact family — no other children

73.2%

Step family — no other children

16.2%

Blended family — no other children

8.2%

Intact family — other children present

1.8%

Other couple — children only

0.7%

Source: ABS Census 2021, G31 Family Blending by SAL

Boulder Schools

schools nearby

government

925

avg ICSEA score

4,665

total students

Kalgoorlie School Of The Air Government

Primary · K-6 · 68 students

1029

ICSEA

Goldfields Baptist College Independent

Combined · PP-11 · 239 students

1017

ICSEA

John Paul College Catholic

Secondary · 7-12 · 699 students

1010

ICSEA

St Joseph's School Catholic

Primary · PP-6 · 193 students

994

ICSEA

Kalgoorlie Primary School Government

Primary · K-6 · 496 students

980

ICSEA

Eastern Goldfields College Government

Secondary · 11-12 · 485 students

954

ICSEA

O'Connor Primary School Government

Primary · K-6 · 761 students

922

ICSEA

O'Connor Education Support Centre Government

Primary · K-6 · 52 students

920

ICSEA

South Kalgoorlie Primary School Government

Primary · K-6 · 350 students

909

ICSEA

Kalgoorlie-Boulder Community High School Government

Secondary · 7-10 · 854 students

890

ICSEA

Eastern Goldfields Education Support Centre Government

Secondary · 7-12 · 47 students

879

ICSEA

Boulder Primary School Government

Primary · K-6 · 263 students

869

ICSEA

East Kalgoorlie Primary School Government

Primary · K-6 · 158 students

648

ICSEA

Fairbridge College - Kalgoorlie Campus Independent

Secondary

Source: Australian Curriculum, Assessment and Reporting Authority (ACARA), 2025. ICSEA is the Index of Community Socio-Educational Advantage (national average 1000).

All schools near Boulder, with a map

Boulder Rent Prices & Affordability

15% of median household income goes on median rent

Marks at 25% and 35%. Band: affordable.

Household income $1,968/wk

Median rent $300/wk

Rent to income 15.2%

Rent is under 25% of household income, generally considered affordable.

Median rent in Boulder against your income

Your weekly income

About $8,528 a month

Median rent $300/wk

Left after rent $1,668/wk

Rent share 15.2%

Cheaper alternatives with similar incomes

Derby (WA)

Income: $855/wk Rent: $180/wk $120/wk less rent

Kambalda West

Income: $1,012/wk Rent: $200/wk $100/wk less rent

Glendalough

Income: $848/wk Rent: $280/wk $20/wk less rent

Osborne Park

Income: $920/wk Rent: $290/wk $10/wk less rent

Kununurra

Income: $1,153/wk Rent: $266/wk $34/wk less rent

Willagee

Income: $829/wk Rent: $283/wk $17/wk less rent

Daglish

Income: $957/wk Rent: $295/wk $5/wk less rent

Boddington

Income: $838/wk Rent: $280/wk $20/wk less rent

Boulder vs the typical WA suburb

The median personal income in Boulder is $1,019 a week, 26% above the typical WA suburb ($806). That ranks 113th of 701 WA suburbs with 200 or more residents. Median rent is $300 a week, $20 less than the typical WA suburb. Rent takes 15.2% of the median household income here, against 18.6% in the typical WA suburb. The median resident is 35, 6 years younger than in the typical WA suburb (41).

The typical suburb is the median across suburbs with 200 or more residents. ABS Census 2021, calculated by GDP.com.au.
Measure	Boulder	Typical WA	Typical Australia
Personal income	$1,019/wk	$806/wk	$766/wk
Household income	$1,968/wk	$1,722/wk	$1,637/wk
Rent	$300/wk	$320/wk	$330/wk
Mortgage repayment	$1,302/mo	$1,759/mo	$1,733/mo
Median age	35	41	42
Rent share of household income	15.2%	18.6%	20.3%

Suburbs near Boulder

The closest suburb to Boulder is South Kalgoorlie, 1.4 km away.

South Kalgoorlie

1.4 km away · income $1,061/wk · rent $300/wk

Kalgoorlie

2.8 km away · income $1,175/wk · rent $300/wk

Somerville (WA)

2.8 km away · income $1,431/wk · rent $330/wk

South Boulder

3.4 km away · income $909/wk · rent $300/wk

Piccadilly (WA)

4.0 km away · income $1,314/wk · rent $320/wk

West Lamington

4.2 km away · income $1,308/wk · rent $350/wk

Compare Boulder

Frequently Asked Questions About Boulder

What is the population of Boulder WA?

The population of Boulder WA is 4,872 according to the ABS Census 2021.The suburb has a population density of 1,107 people per km².Boulder is ranked #1,617 out of 14,663 suburbs by population.

What is the median income in Boulder?

The median personal income in Boulder WA is $1,019 per week, or $52,988 per year.The median household income is $1,968 per week.Family income is $2,337 per week.Boulder is ranked #1,109 by income out of 14,663 Australian suburbs.

How much is rent in Boulder?

Median rent in Boulder WA is $300 per week ($1,300 per month).Rent represents 15.2% of household income, which is considered affordable.Boulder ranks #4,529 out of 14,663 suburbs by rent.

What are mortgage repayments in Boulder?

The median monthly mortgage repayment in Boulder WA is $1,302. This data comes from the ABS Census 2021 and reflects mortgage repayments for owner-occupied dwellings.

What is the median age in Boulder?

The median age in Boulder WA is 35 years.This is younger than the national median age of 38 years.

Is Boulder a good suburb to live in?

Boulder is a suburb in Western Australia with a population of 4,872.The median income is $1,019/wk, which is above the typical WA suburb ($806/wk).Rent affordability is rated as affordable (15.2% of household income). See the full suburb profile above for detailed statistics.

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Australian Average Salary Australian House Prices Perth Cost of Living

Data: Australian Bureau of Statistics, Census of Population and Housing 2021. SA2 area: 50159. All dollar figures in AUD.