Mount Martha is a suburb in Mornington Peninsula, Victoria (postcode 3934), located in the Mornington Peninsula region. At the ABS Census 2021 it had a population of 19,846 people.

At a glance

Population (2021)

19,846

Median age

Household income

$2,097/wk

Weekly rent

$496

Unemployment

2.8%

SEIFA IRSD decile

9 / 10

Age distribution

0-4

4.6%

5-14

14.6%

15-19

7.1%

20-24

4.3%

25-34

5.8%

35-44

11.3%

45-54

15.8%

55-64

12.7%

65-74

12.3%

75-84

8.3%

85+

3.1%

Housing tenure

Owned

42.3%

Mortgage

41.9%

Rented

12.1%

Other

2.6%

Key statistics

Indicator	Value
Postcode	3934
Population (2021)	19,846
Males	9,504 (47.9%)
Females	10,340 (52.1%)
Median age	46 years
Average household size	2.7
Median weekly household income	$2,097
Median weekly family income	$2,481
Median weekly rent	$496
Median monthly mortgage	$2,167
Labour force	9,695
Unemployment rate	2.8%
Participation rate	62.8%
Born overseas	20.2%
Separate houses	72.1%
Worked at home	26.7%
SEIFA IRSD decile	9 of 10
Bachelor degree or higher	44.8%
Completed Year 12 or equivalent	65.6%
Aboriginal and/or Torres Strait Islander residents	0.6%
Residents needing assistance with core activities	4.9%
Households with 2+ vehicles	69.7%
Distance from Melbourne CBD	51.5 km (straight line)

Age profile

Median age: 46 years. Residents under 15: 19.2%. Residents aged 65 and over: 23.8%.

Age group	People	Share of population
0-4	913	4.6%
5-14	2,902	14.6%
15-19	1,412	7.1%
20-24	860	4.3%
25-34	1,144	5.8%
35-44	2,246	11.3%
45-54	3,132	15.8%
55-64	2,514	12.7%
65-74	2,445	12.3%
75-84	1,657	8.3%
85 and over	618	3.1%

Households and families

Household type	Count	Share of households
Total households	7,022
Average household size	2.7
One person	1,457	20.7%
Two persons	2,483	35.4%
Three persons	986	14.0%
Four persons	1,372	19.5%
Five persons	589	8.4%
Six or more persons	134	1.9%

Family type	Count	Share of families
Total families	5,574
Couples with children	329	5.9%
Couples without children	2,249	40.3%
One-parent families	655	11.8%
Other families	41	0.7%

Children ever born

Measure	Value
Average children per woman aged 15+	1.77
Women with no children	25.4%
Women with three or more children	27.7%

Of the 2,638 couple families with children in Mount Martha, 9.9% are step or blended families.

Marital status

Marital status of residents aged 15 and over in Mount Martha.

Status	Share of adults
Married (registered marriage)	57.0%
Married (de facto)	9.2%
Not married	33.8%

Housing

Dwellings	Count	Share of dwellings
Total dwellings	8,202
Occupied	7,022	85.6%
Unoccupied	1,176	14.3%

Dwelling structure	Count	Share of dwellings
Separate house	5,916	72.1%
Semi-detached or townhouse	1,084	13.2%
Flat or apartment	20	0.2%
Other dwelling	0	0.0%

Tenure	Count	Share of households
Owned outright	2,968	42.3%
Owned with a mortgage	2,945	41.9%
Rented	848	12.1%
Other tenure	182	2.6%

Weekly rent

Rent band	Share of renting households
Under $350 per week	11.7%
$350 to $549 per week	53.1%
$550 or more per week	35.1%

1.5% of renting households rent through a state or community housing provider.

Monthly mortgage repayments

Repayment band	Share of mortgaged households
Under $1,000	14.1%
$1,000 to $1,799	20.6%
$1,800 to $2,999	37.8%
$3,000 or more	27.6%

Bedrooms per dwelling

Bedrooms	Share of dwellings
None or one bedroom	0.7%
Two bedrooms	9.4%
Three bedrooms	44.0%
Four or more bedrooms	46.0%

Employment

Labour force status	Count	Share
Labour force	9,695
Employed	9,421	97.2%
Unemployed	271	2.8%
Not in the labour force	5,747
Unemployment rate	2.8%
Participation rate	62.8%

42.2% of employed residents work part time, fewer than 35 hours per week.

Household income

Household incomes in Mount Martha are distributed across the following weekly bands.

Weekly household income	Share of households
Under $650	13.4%
$650 to $1,499	24.6%
$1,500 to $2,999	29.7%
$3,000 or more	32.3%

For residents aged 15 and over, personal weekly income is distributed as follows.

Weekly personal income	Share of residents 15+
Under $500	32.3%
$500 to $999	23.5%
$1,000 to $1,999	26.5%
$2,000 or more	17.6%

Travel to work

Method	Count	Share of workers
Car driver	4,934	52.4%
Car passenger	308	3.3%
Train	3	0.0%
Bus	22	0.2%
Tram	0	0.0%
Bicycle	36	0.4%
Walked only	90	1.0%
Worked at home	2,513	26.7%

Religious affiliation

Religion	Count	Share of residents
Christianity	8,827	44.5%
No religion	9,653	48.6%
Islam	29	0.1%
Hinduism	27	0.1%
Buddhism	93	0.5%
Judaism	62	0.3%
Other or not stated	1,155	5.8%

Socio-economic profile (SEIFA 2021)

SEIFA deciles run from 1 (most disadvantaged) to 10 (least disadvantaged) nationally.

Index	Score	Decile	Percentile
IRSD (disadvantage)	1079	9	89
IRSAD (advantage and disadvantage)	1068	9
IER (economic resources)	1090	9
IEO (education and occupation)	1060	9

Where residents were born

79.2% of residents were born in Australia and 20.8% were born overseas. The most common overseas birthplaces in Mount Martha are listed below.

Country of birth	People	Share of residents
England	1,746	9.1%
New Zealand	261	1.4%
Scotland	237	1.2%
Italy	132	0.7%
Ireland	130	0.7%
South Africa	127	0.7%

When overseas-born residents arrived

Year of arrival	Share of overseas-born residents
2016 to 2021	4.4%
2011 to 2015	9.8%
2001 to 2010	24.0%
Before 2001	61.8%

Languages spoken at home

94.8% of residents speak only English at home. The most common other languages in Mount Martha are listed below. Across all households, 0.3% of residents speak English not well or not at all.

Language	People	Share of residents
Italian	163	0.8%
German	119	0.6%
Greek	110	0.6%
Spanish	46	0.2%
French	34	0.2%
Chinese: Mandarin	33	0.2%

Ancestry

Residents of Mount Martha most commonly report the following ancestries.

Ancestry	Responses	Share of responses
English	9,442	34.1%
Australian	7,131	25.8%
Irish	2,694	9.7%
Scottish	2,638	9.5%
Italian	961	3.5%
German	813	2.9%

Work and industry

The largest employment sectors for Mount Martha residents are listed below.

Industry of employment	Workers	Share of workers
Health Care and Social Assistance	1,345	14.9%
Construction	1,215	13.5%
Education and Training	1,001	11.1%
Retail Trade	910	10.1%
Professional, Scientific and Technical Services	743	8.2%
Accommodation and Food Services	701	7.8%

The most common occupations among Mount Martha residents are listed below.

Occupation	Workers	Share of workers
Professionals	2,238	24.2%
Managers	1,725	18.6%
Technicians and Trades Workers	1,260	13.6%
Clerical and Administrative Workers	1,124	12.1%
Community and Personal Service Workers	1,121	12.1%
Sales Workers	948	10.2%

Education

Of residents attending an education institution in Mount Martha, 13.2% are at university or higher education, 7.2% are at TAFE or vocational education, and 77.6% are at school.

65.6% of residents aged 15 and over have completed Year 12 or equivalent.

The most common fields of study among Mount Martha residents with qualifications are listed below.

Field of study	People	Share
Management and Commerce	2,037	21.4%
Health	1,351	14.2%
Engineering and Related Technologies	1,281	13.4%
Education	1,246	13.1%
Society and Culture	1,173	12.3%
Architecture and Building	878	9.2%

Long-term health conditions

53.2% of residents report no long-term health condition. The most commonly reported conditions in Mount Martha are listed below.

Health condition	People	Share of residents
Arthritis	2,000	9.1%
Asthma	1,686	7.7%
Mental health condition (including depression or anxiety)	1,539	7.0%
Heart disease (including heart attack or angina)	978	4.4%
Cancer (including remission)	863	3.9%
Diabetes (excluding gestational diabetes)	727	3.3%
Lung condition (including COPD or emphysema)	305	1.4%
Stroke	248	1.1%
Dementia (including Alzheimer's)	172	0.8%
Kidney disease	170	0.8%

22.5% of residents report one condition, 6.5% report two, and 3.4% report three or more.

Community and care

How residents of Mount Martha contribute to their community (share of residents aged 15 and over).

Community activity	Share
Volunteers for an organisation or group	16.5%
Provides unpaid assistance to a person with a disability or health condition	14.1%
Provides unpaid child care	62.7%
Does 15 or more hours of unpaid domestic work	25.3%
Has served or is serving in the Australian Defence Force	3.1%

Moving and stability

Mobility	Share of residents
Same address 1 year ago	88.9%
Moved within Victoria in the last year	7.7%
Moved interstate in the last year	0.4%
Moved from overseas in the last year	0.5%
Same address 5 years ago	64.9%
Moved within Victoria in the last 5 years	24.4%
Moved interstate in the last 5 years	1.7%
Moved from overseas in the last 5 years	1.8%

Photo: Mount Martha, Victoria. Credit: orderinchaos / CC BY-SA 3.0 via Wikimedia Commons.

Crime and safety

Victoria Police recorded 397 offences in Mount Martha in the 12 months to March 2026.

Offence division	Recorded offences
A Crimes against the person	51
B Property and deception offences	236
C Drug offences	6
D Public order and security offences	7
E Justice procedures offences	97
F Other offences	0

That is a calculated rate of 20.0 recorded offences per 1,000 residents, based on the ABS Census 2021 population. This rate was calculated by My Victoria AU and is not a Crime Statistics Agency figure.

For context, the Mornington Peninsula local government area recorded 6,718 offences per 100,000 residents in the same period. That figure is the official Crime Statistics Agency rate for the LGA.

Five-year trend

2022
350

2023
443

2024
526

2025
741

2026
397

Recorded offences count crimes reported to Victoria Police in this locality, not crimes committed by or against its residents. Areas with shopping centres, transport hubs, hospitals or entertainment precincts record more offences regardless of how safe they are for people who live there. Counts are revised as investigations progress.

Source: Crime Statistics Agency Victoria, Data tables - Recorded offences, Year ending March 2026. Licensed under CC BY 4.0. Rates per 1,000 residents are calculations by My Victoria AU using ABS Census 2021 population and are not CSA figures. View the source dataset.

Location

Nearby suburbs

Safety Beach (5.4 km)
Tuerong (5.5 km)
Mornington (5.8 km)
Dromana (6.9 km)
Moorooduc (8.0 km)

Browse more suburbs in Mornington Peninsula, or explore the wider Mornington Peninsula region of Victoria.

Data disclaimer: The statistics on this page are sourced from the Australian Bureau of Statistics (ABS), Census of Population and Housing 2021 and SEIFA 2021 (ASGS Edition 3), and are used under the ABS CC BY 4.0 licence. This directory is an independent community resource and is not affiliated with or endorsed by the ABS.

Mount Martha

About

At a glance

Age distribution

Housing tenure

Key statistics

Age profile

Households and families

Children ever born

Marital status

Housing

Weekly rent

Monthly mortgage repayments

Bedrooms per dwelling

Employment

Household income

Travel to work

Religious affiliation

Socio-economic profile (SEIFA 2021)

Where residents were born

When overseas-born residents arrived

Languages spoken at home

Ancestry

Work and industry

Education

Long-term health conditions

Community and care

Moving and stability

Crime and safety

Five-year trend

Location

Nearby suburbs

Reviews

Location & Contact

Location

Contact

Similar listings in category

Arthurs Seat

Balnarring

Balnarring Beach