Mount Gambier, SA: suburb profile

The population of Mount Gambier SA is 25,591 according to the 2021 Census. The median personal income in Mount Gambier is $691 per week ($35,932 per year). Median rent in Mount Gambier is $220 per week ($953 per month). Mount Gambier has a median age of 41 years, older than the national median of 38. Mount Gambier has a population density of 955 people per km².

The most common overseas birthplace in Mount Gambier is England. The most common religion is No religion (52.0% of residents). After English, the most spoken language is Italian. The median monthly mortgage repayment in Mount Gambier is $1,083.

There were 748 recorded offences in Mount Gambier in 2025-26, a rate of 29 offences per 1,000 people. The most common offence category was theft (251 offences).

Population
25,591
Census 2021
Median income
$691/wk
Personal, Census 2021
Median rent
$220/wk
Weekly, Census 2021
Median age
41years
Census 2021

Valid: Census 2021 · Source: ABS Census of Population and Housing 2021; offences from SA Government Open Data (data.sa.gov.au), 2025-26.

Mount Gambier vs the typical SA suburb

The median personal income in Mount Gambier is $691 a week, 9% below the typical SA suburb ($759). That ranks 453rd of 710 SA suburbs with 200 or more residents. Median rent is $220 a week, $80 less than the typical SA suburb. Rent takes 18.4% of the median household income here, against 19.5% in the typical SA suburb. The median resident is 41, 2 years younger than in the typical SA suburb (43).

The typical suburb is the median across suburbs with 200 or more residents. ABS Census 2021, calculated by GDP.com.au.
MeasureMount GambierTypical SADifferenceTypical Australia
Personal income$691/wk$759/wk −9%$766/wk
Household income$1,197/wk$1,494/wk −20%$1,637/wk
Rent$220/wk$300/wk −27%$330/wk
Mortgage repayment$1,083/mo$1,534/mo −29%$1,733/mo
Median age4143 −2 yrs42
Rent share of household income18.4%19.5% −1.1 pts20.3%
Income, rent and mortgage against the typical suburb Valid: Census 2021 · Source: ABS, calculated by GDP.com.au
Bar chart of median income, rent and mortgage repayment in Mount Gambier, the typical SA suburb and the typical Australian suburb.

Mount Gambier Population

25,591 residents at the 2021 Census.

Mount Gambier Median Income & Rent

Median Income
$691/wk
$35,932 per year
Ranked 5,640 of 14,663
Median Rent
$220/wk
$953 per month
Ranked 7,029 of 14,663
Median Age
41years
3 years older than the national median
Mortgage
$1,083/mo
Avg household size: 2.2 · 0.7 per bedroom

Valid: Census 2021 · Source: ABS Census of Population and Housing.

Mount Gambier Rent Prices & Affordability

18% of median household income goes on median rent

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

Household income $1,197/wk
Median rent $220/wk
Rent to income 18.4%

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

Median rent in Mount Gambier against your income

About $5,187 a month
Median rent $220/wk
Left after rent $977/wk
Rent share 18.4%

Mount Gambier Schools

12
schools nearby
9
government
956
avg ICSEA score
5,620
total students
Tenison Woods College Catholic
Combined · R-12 · 1,552 students
1031
ICSEA
St Martins Lutheran College Independent
Combined · R-12 · 810 students
1028
ICSEA
Reidy Park Primary School Government
Primary · R-6 · 474 students
990
ICSEA
Suttontown Primary School Government
Primary · R-6 · 101 students
960
ICSEA
Grant High School Government
Secondary · U, 7-12 · 978 students
954
ICSEA
Gordon Education Centre Government
Combined · U · 62 students
951
ICSEA
McDonald Park School Government
Primary · U, R-6 · 379 students
948
ICSEA
Mount Gambier High School Government
Secondary · U, 7-12 · 778 students
946
ICSEA
Mulga Street Primary School Government
Primary · R-6 · 189 students
943
ICSEA
Mount Gambier North Primary School Government
Primary · U, R-6 · 190 students
888
ICSEA
Melaleuca Park Primary School Government
Primary · U, R-6 · 107 students
882
ICSEA
OneSchool Global SA - Mount Gambier Campus Independent
Combined

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

All schools near Mount Gambier, with a map

Mount Gambier Map

Mount Gambier, South Australia Map data: OpenStreetMap
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Mount Gambier, South Australia: 37.8263°S, 140.7807°E

Mount Gambier Circle size: offences per 1,000 residents Schools (12)

People in Mount Gambier

Demographics

Gender Split

Male 48.0% (12,291) Female 52.0% (13,301)

Population Density

955
people per km²
25,591 people · 26.8 km²

Households

2.2
Avg household size
0.7
Persons per bedroom
$1,641
Family income/wk

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)

Most common overseas birthplaces

England
2.5%
New Zealand
0.8%
Myanmar
0.8%
Thailand
0.7%
Philippines
0.6%
India
0.6%
Netherlands
0.5%

Shares are of all residents. Source: ABS Census 2021, G09 Country of Birth by SAL

Most common languages at home other than English

Italian
0.6%
Mandarin
0.3%
Punjabi
0.2%
Afrikaans
0.2%
Greek
0.2%
Filipino
0.2%
Urdu
0.2%

Shares are of all residents. Source: ABS Census 2021, G13 Language Used at Home by SAL

Ancestry

Australian
41.2%
English
41.1%
Scottish
10.2%
Irish
8.7%
German
8.0%
Italian
3.4%
Australian Aboriginal
2.8%
Dutch
2.6%
Polish
0.8%
Filipino
0.8%
Chinese
0.8%

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

Religion

No religion
52.0%
Catholic
14.4%
Not stated
7.2%
Anglican
6.1%
Uniting Church
4.3%
Presbyterian and Reformed
3.4%
Baptist
2.6%
Christian (other)
2.3%

Source: ABS Census 2021, G14 Religion by SAL

Indigenous Population

2.8%
Aboriginal & Torres Strait Islander

Source: ABS Census 2021, G07 Indigenous Status by SAL

Marital Status

Married
42.4% 8,915
Separated
3.9% 830
Divorced
10.7% 2,245
Widowed
7.2% 1,513
Never married
35.8% 7,517

Source: ABS Census 2021, G05 Marital Status by SAL

Family Structure

Couple: children under 15
37.4%
Couple: no children
31.4%
Couple: no children under 15
12.6%
One parent: children under 15
11.9%
One parent: no children under 15
6.7%

Source: ABS Census 2021, G29 Family Composition by SAL

Household Size

1 person
34.9%
2 persons
34.4%
3 persons
13.1%
4 persons
11.2%
5 persons
4.3%
6+ persons
2.2%

Source: ABS Census 2021, G35 Household Size by SAL

Homes in Mount Gambier

Housing Tenure

Of the 10,528 occupied private dwellings in Mount Gambier at the 2021 Census, 32.5% were rented, 30.5% owned outright and 32.2% owned with a mortgage.

Other tenure type
3.3% 345 dwellings
Owned outright
30.5% 3,216 dwellings
Owned with mortgage
32.2% 3,385 dwellings
Rented
32.5% 3,426 dwellings
Tenure type not stated
1.5% 159 dwellings

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

Dwelling Types

Separate house
84.5%
Semi-detached (1 storey)
15.1%
Semi-detached (2+ storey)
0.4%

Source: ABS Census 2021, G36 Dwelling Structure by SAL

Number of Bedrooms

1 bedroom
2.8%
2 bedrooms
20.3%
3 bedrooms
54.9%
4 bedrooms
19.3%
5 bedrooms
2.3%
6+ bedrooms
0.4%

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

Monthly Mortgage Repayments

$0-$299/mo
4.5%
$300-$449/mo
3.9%
$450-$599/mo
4.0%
$600-$799/mo
10.5%
$800-$999/mo
17.3%
$1,000-$1,399/mo
32.6%
$1,400-$1,799/mo
16.4%
$1,800-$2,399/mo
7.7%
$2,400-$2,999/mo
1.9%
$3,000-$3,999/mo
1.3%

Source: ABS Census 2021, G38 Mortgage Repayment by SAL

Car Ownership

0 vehicles
7.8%
1 vehicle
38.9%
2 vehicles
35.5%
3 vehicles
11.7%
4+ vehicles
6.1%

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

Work, income and education in Mount Gambier

Employment

Employed full-time
34.7% 6,648 people
Employed part-time
22.3% 4,279 people
Unemployed
3.1% 595 people
Not in labour force
39.8% 7,632 people

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

Occupation

Professionals
22.9%
Community & Personal Service
19.1%
Technicians & Trade Workers
17.7%
Managers
11.2%
Clerical & Administrative
9.7%
Labourers
7.1%
Sales Workers
6.9%
Machinery Operators & Drivers
5.5%

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

Weekly Household Income

Nil/Negative/wk
1.5%
$1-$149/wk
0.7%
$150-$299/wk
1.9%
$300-$399/wk
3.7%
$400-$499/wk
10.4%
$500-$649/wk
6.7%
$650-$799/wk
9.3%
$800-$999/wk
9.0%
$1,000-$1,249/wk
8.7%
$1,250-$1,499/wk
8.2%
$1,500-$1,749/wk
6.2%
$1,750-$1,999/wk
5.8%
$2,000-$2,499/wk
11.8%
$2,500-$2,999/wk
5.9%
$3,000-$3,499/wk
4.5%
$3,500-$3,999/wk
1.9%
$4,000+/wk
4.0%

Source: ABS Census 2021, G33 Household Income by SAL

Personal Weekly Income Distribution

$0 or less/wk
7.7%
$1-$149/wk
4.7%
$150-$299/wk
7.6%
$300-$399/wk
6.1%
$400-$499/wk
5.1%
$500-$649/wk
4.0%
$650-$799/wk
11.5%
$800-$999/wk
13.4%
$1,000-$1,249/wk
13.1%
$1,250-$1,499/wk
8.7%
$1,500-$1,749/wk
6.8%
$1,750-$1,999/wk
4.2%
$2,000-$2,999/wk
5.2%
$3,000-$3,499/wk
0.8%
$3,500+/wk
1.3%

Source: ABS Census 2021, G17 Personal Income by SAL

How People Get to Work

Car (driver)
78.4%
Did not go to work
11.0%
Car (passenger)
6.1%
Walked only
2.4%
Bicycle
0.5%
Truck
0.4%
Other
0.3%
Bus
0.3%
Motorbike/Scooter
0.3%
Taxi/Rideshare
0.2%
Ferry
0.0%
Train
0.0%

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

Education Level

Year 12 or equivalent
45.9%
Year 11 or equivalent
25.4%
Year 10 or equivalent
21.6%
Year 9 or equivalent
7.2%

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

Qualifications

Certificate III/IV
51.9%
Bachelor Degree
20.4%
Advanced Diploma/Diploma
15.7%
Certificate I/II
4.3%
Postgraduate Degree
4.1%
Graduate Diploma/Certificate
3.6%

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

Field of Study

Management & Commerce
19.5%
Engineering
17.3%
Society & Culture
16.2%
Health
13.0%
Education
11.1%
Food, Hospitality & Personal Services
8.0%
Architecture & Building
6.5%
Agriculture & Environment
3.5%
Creative Arts
2.1%
Information Technology
1.4%
Natural & Physical Sciences
1.3%

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

School & University Attendance

Primary: Government
34.3%
Secondary: Government
20.8%
Vocational Education
12.3%
Pre-school
8.9%
Primary: Catholic
8.1%
Secondary: Catholic
7.3%
Primary: Other Non-Govt
4.2%
Secondary: Other Non-Govt
4.1%

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

More from the 2021 Census

Need for Assistance

Does not have need for assistance
86.6%
Has need for assistance
7.7%
Need for assistance not stated
5.6%

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

Long-term Health Conditions

Mental health
2,873
Asthma
1,132
Arthritis
984
Diabetes
896
Heart disease
831
Lung condition
697
Cancer
413
Stroke
344
Kidney disease
292
Dementia
115

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

Unpaid Carers

Provided unpaid assistance
14.0% 2,754
Did not provide
86.0% 16,908

Source: ABS Census 2021, G25 Unpaid Assistance by SAL

Volunteering

Volunteer
17.8% 3,520
Not a volunteer
82.2% 16,224

Source: ABS Census 2021, G23 Voluntary Work by SAL

Military Service

Current ADF: Reserves
0.1% 13
Previously served
3.2% 631
Never served
96.7% 19,169

Source: ABS Census 2021, G22 ADF Service by SAL

Children Ever Born

No children
28.5%
1 child
12.1%
2 children
30.7%
3 children
18.9%
4 children
7.5%
5+ children
2.5%

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

When Migrants Arrived

Before 1951
72
1951: 1960
404
1961: 1970
421
1971: 1980
246
1981: 1990
154
1991: 2000
160
2001: 2010
502
2011: 2015
422
2016
81
2017
106
2018
101
2019
115
2020
41
2021
16

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

Population Mobility

14.4%
moved in the last year
40.7%
moved in the last 5 years
4.9%
unemployment rate (Census)
58.1%
labour force participation

Source: ABS Census 2021, G43 Summary by SAL

Where Residents Moved From

Same address
20,350
Moved from SA
1,702
Moved: same area (SA2)
1,141
Moved from VIC
250
Moved from QLD
72
Moved from overseas
66
Moved from NSW
54
Moved from WA
23
Moved from NT
21
Moved from TAS
18

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

Unpaid Domestic Work

Less than 5 hours
20.9%
5: 14 hours
29.7%
15: 29 hours
13.4%
30+ hours
9.5%
Did not do domestic work
26.5%

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

Family Blending

Intact family: no other children
80.6%
Step family: no other children
9.4%
Blended family: no other children
7.8%
Intact family: other children present
1.1%
Other couple: children only
1.0%
Blended family: other children present
0.2%

Source: ABS Census 2021, G31 Family Blending by SAL

Mount Gambier Crime Statistics

748 reported offences in 2025-26, by category.

Theft
251
Assault
182
Property Damage
161
Break & Enter
101
Other Against Person
30
Fraud
19
Robbery
4

Total offences by year

2021
2022
2023
2024
2025

Source: SA Government Open Data (data.sa.gov.au).

Cheaper alternatives with similar incomes

Risdon Park South
Income: $713/wk Rent: $185/wk $35/wk less rent
Paringa
Income: $800/wk Rent: $200/wk $20/wk less rent
Renmark West
Income: $788/wk Rent: $200/wk $20/wk less rent
Port Augusta West
Income: $720/wk Rent: $213/wk $7/wk less rent
Berri
Income: $610/wk Rent: $215/wk $5/wk less rent
Risdon Park
Income: $577/wk Rent: $180/wk $40/wk less rent
Keith
Income: $746/wk Rent: $180/wk $40/wk less rent
Whyalla Norrie
Income: $596/wk Rent: $180/wk $40/wk less rent

Suburbs near Mount Gambier

The closest suburb to Mount Gambier is Worrolong, 5.5 km away.

Worrolong
5.5 km away · income $934/wk · rent $361/wk
Moorak
8.8 km away · income $817/wk · rent $250/wk
Compton
9.1 km away · income $913/wk · rent $230/wk

Compare Mount Gambier

Frequently Asked Questions About Mount Gambier

What is the population of Mount Gambier SA?

The population of Mount Gambier SA is 25,591 according to the ABS Census 2021. The suburb has a population density of 955 people per km². Mount Gambier is ranked #74 out of 14,663 suburbs by population.

What is the median income in Mount Gambier?

The median personal income in Mount Gambier SA is $691 per week, or $35,932 per year. The median household income is $1,197 per week. Family income is $1,641 per week. Mount Gambier is ranked #5,640 by income out of 14,663 Australian suburbs.

How much is rent in Mount Gambier?

Median rent in Mount Gambier SA is $220 per week ($953 per month). Rent represents 18.4% of household income, which is considered affordable. Mount Gambier ranks #7,029 out of 14,663 suburbs by rent.

What are mortgage repayments in Mount Gambier?

The median monthly mortgage repayment in Mount Gambier SA is $1,083. This data comes from the ABS Census 2021 and reflects mortgage repayments for owner-occupied dwellings.

What is the median age in Mount Gambier?

The median age in Mount Gambier SA is 41 years. This is older than the national median age of 38 years.

Is Mount Gambier a good suburb to live in?

Mount Gambier is a suburb in South Australia with a population of 25,591. The median income is $691/wk, which is below the typical SA suburb ($759/wk). Rent affordability is rated as affordable (18.4% of household income). See the full suburb profile above for detailed statistics.

Explore More

Australian Average Salary Australian House Prices Adelaide Cost of Living

Data: Australian Bureau of Statistics, Census of Population and Housing 2021. SA2 area: 40947. All dollar figures in AUD.