Somerville is a suburb in Mornington Peninsula, Victoria (postcode 3912), located in the Mornington Peninsula region. At the ABS Census 2021 it had a population of 11,767 people.

At a glance

Population (2021)

11,767

Median age

Household income

$1,781/wk

Weekly rent

$380

Unemployment

2.4%

SEIFA IRSD decile

7 / 10

Age distribution

0-4

6.6%

5-14

12.0%

15-19

5.7%

20-24

5.5%

25-34

13.4%

35-44

12.1%

45-54

12.3%

55-64

13.5%

65-74

10.5%

75-84

5.8%

85+

2.7%

Housing tenure

Owned

32.3%

Mortgage

47.5%

Rented

16.0%

Other

2.9%

Key statistics

Indicator	Value
Postcode	3912
Population (2021)	11,767
Males	5,675 (48.2%)
Females	6,084 (51.7%)
Median age	40 years
Average household size	2.6
Median weekly household income	$1,781
Median weekly family income	$2,149
Median weekly rent	$380
Median monthly mortgage	$1,800
Labour force	6,201
Unemployment rate	2.4%
Participation rate	67.8%
Born overseas	15.2%
Separate houses	78.5%
Worked at home	16.5%
SEIFA IRSD decile	7 of 10
Bachelor degree or higher	29.3%
Completed Year 12 or equivalent	53.4%
Aboriginal and/or Torres Strait Islander residents	1.0%
Residents needing assistance with core activities	5.4%
Households with 2+ vehicles	68.6%
Distance from Melbourne CBD	51.0 km (straight line)

Age profile

Median age: 40 years. Residents under 15: 18.6%. Residents aged 65 and over: 18.9%.

Age group	People	Share of population
0-4	779	6.6%
5-14	1,412	12.0%
15-19	667	5.7%
20-24	652	5.5%
25-34	1,571	13.4%
35-44	1,429	12.1%
45-54	1,449	12.3%
55-64	1,586	13.5%
65-74	1,234	10.5%
75-84	679	5.8%
85 and over	316	2.7%

Households and families

Household type	Count	Share of households
Total households	4,322
Average household size	2.6
One person	1,015	23.5%
Two persons	1,434	33.2%
Three persons	715	16.5%
Four persons	750	17.4%
Five persons	286	6.6%
Six or more persons	116	2.7%

Family type	Count	Share of families
Total families	3,324
Couples with children	123	3.7%
Couples without children	1,243	37.4%
One-parent families	526	15.8%
Other families	40	1.2%

Children ever born

Measure	Value
Average children per woman aged 15+	1.73
Women with no children	27.5%
Women with three or more children	27.5%

Of the 1,512 couple families with children in Somerville, 14.6% are step or blended families.

Marital status

Marital status of residents aged 15 and over in Somerville.

Status	Share of adults
Married (registered marriage)	46.4%
Married (de facto)	15.0%
Not married	38.6%

Housing

Dwellings	Count	Share of dwellings
Total dwellings	4,527
Occupied	4,322	95.5%
Unoccupied	208	4.6%

Dwelling structure	Count	Share of dwellings
Separate house	3,555	78.5%
Semi-detached or townhouse	741	16.4%
Flat or apartment	8	0.2%
Other dwelling	9	0.2%

Tenure	Count	Share of households
Owned outright	1,397	32.3%
Owned with a mortgage	2,053	47.5%
Rented	693	16.0%
Other tenure	127	2.9%

Weekly rent

Rent band	Share of renting households
Under $350 per week	34.9%
$350 to $549 per week	60.2%
$550 or more per week	4.8%

6.4% of renting households rent through a state or community housing provider.

Monthly mortgage repayments

Repayment band	Share of mortgaged households
Under $1,000	17.4%
$1,000 to $1,799	32.5%
$1,800 to $2,999	37.9%
$3,000 or more	12.3%

Bedrooms per dwelling

Bedrooms	Share of dwellings
None or one bedroom	2.1%
Two bedrooms	12.4%
Three bedrooms	46.8%
Four or more bedrooms	38.7%

Employment

Labour force status	Count	Share
Labour force	6,201
Employed	6,053	97.6%
Unemployed	148	2.4%
Not in the labour force	2,951
Unemployment rate	2.4%
Participation rate	67.8%

38.5% of employed residents work part time, fewer than 35 hours per week.

Household income

Household incomes in Somerville are distributed across the following weekly bands.

Weekly household income	Share of households
Under $650	15.5%
$650 to $1,499	27.7%
$1,500 to $2,999	34.9%
$3,000 or more	21.8%

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

Weekly personal income	Share of residents 15+
Under $500	32.4%
$500 to $999	26.2%
$1,000 to $1,999	31.0%
$2,000 or more	10.5%

Travel to work

Method	Count	Share of workers
Car driver	3,792	62.6%
Car passenger	205	3.4%
Train	17	0.3%
Bus	9	0.1%
Tram	0	0.0%
Bicycle	13	0.2%
Walked only	81	1.3%
Worked at home	1,001	16.5%

Religious affiliation

Religion	Count	Share of residents
Christianity	4,636	39.4%
No religion	6,276	53.3%
Islam	25	0.2%
Hinduism	3	0.0%
Buddhism	60	0.5%
Judaism	12	0.1%
Other or not stated	755	6.4%

Socio-economic profile (SEIFA 2021)

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

Index	Score	Decile	Percentile
IRSD (disadvantage)	1039	7	66
IRSAD (advantage and disadvantage)	1000	6
IER (economic resources)	1052	7
IEO (education and occupation)	975	5

Where residents were born

84.3% of residents were born in Australia and 15.7% were born overseas. The most common overseas birthplaces in Somerville are listed below.

Country of birth	People	Share of residents
England	817	7.2%
New Zealand	138	1.2%
Scotland	106	0.9%
Netherlands	60	0.5%
Germany	57	0.5%
South Africa	52	0.5%

When overseas-born residents arrived

Year of arrival	Share of overseas-born residents
2016 to 2021	3.1%
2011 to 2015	7.7%
2001 to 2010	18.2%
Before 2001	70.9%

Languages spoken at home

96.1% of residents speak only English at home. The most common other languages in Somerville are listed below. Across all households, 0.3% of residents speak English not well or not at all.

Language	People	Share of residents
Italian	46	0.4%
Chinese: Mandarin	28	0.2%
German	24	0.2%
Southeast Asian Austronesian languages: Filipino	21	0.2%
Greek	20	0.2%
Spanish	19	0.2%

Ancestry

Residents of Somerville most commonly report the following ancestries.

Ancestry	Responses	Share of responses
English	5,619	34.6%
Australian	4,971	30.6%
Scottish	1,335	8.2%
Irish	1,208	7.4%
German	482	3.0%
Italian	469	2.9%

Work and industry

The largest employment sectors for Somerville residents are listed below.

Industry of employment	Workers	Share of workers
Construction	994	17.1%
Health Care and Social Assistance	886	15.2%
Retail Trade	612	10.5%
Education and Training	555	9.5%
Manufacturing	521	9.0%
Public Administration and Safety	332	5.7%

The most common occupations among Somerville residents are listed below.

Occupation	Workers	Share of workers
Technicians and Trades Workers	1,177	19.8%
Professionals	1,012	17.0%
Clerical and Administrative Workers	802	13.5%
Community and Personal Service Workers	762	12.8%
Managers	678	11.4%
Labourers	629	10.6%

Education

Of residents attending an education institution in Somerville, 11.8% are at university or higher education, 9.5% are at TAFE or vocational education, and 75.6% are at school.

53.4% of residents aged 15 and over have completed Year 12 or equivalent.

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

Field of study	People	Share
Engineering and Related Technologies	932	18.3%
Management and Commerce	849	16.6%
Health	664	13.0%
Society and Culture	623	12.2%
Education	607	11.9%
Architecture and Building	548	10.7%

Long-term health conditions

48.5% of residents report no long-term health condition. The most commonly reported conditions in Somerville are listed below.

Health condition	People	Share of residents
Mental health condition (including depression or anxiety)	1,394	10.3%
Arthritis	1,225	9.1%
Asthma	1,196	8.9%
Heart disease (including heart attack or angina)	546	4.1%
Diabetes (excluding gestational diabetes)	530	3.9%
Cancer (including remission)	453	3.4%
Lung condition (including COPD or emphysema)	221	1.6%
Stroke	124	0.9%
Dementia (including Alzheimer's)	120	0.9%
Kidney disease	117	0.9%

23.6% of residents report one condition, 8.4% report two, and 4.0% report three or more.

Community and care

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

Community activity	Share
Volunteers for an organisation or group	11.0%
Provides unpaid assistance to a person with a disability or health condition	14.5%
Provides unpaid child care	61.3%
Does 15 or more hours of unpaid domestic work	21.5%
Has served or is serving in the Australian Defence Force	3.2%

Moving and stability

Mobility	Share of residents
Same address 1 year ago	89.1%
Moved within Victoria in the last year	7.2%
Moved interstate in the last year	0.4%
Moved from overseas in the last year	0.2%
Same address 5 years ago	64.5%
Moved within Victoria in the last 5 years	23.1%
Moved interstate in the last 5 years	1.2%
Moved from overseas in the last 5 years	1.2%

Photo: Somerville, Victoria. Credit: Celco85 / CC BY-SA 4.0 via Wikimedia Commons.

Crime and safety

Victoria Police recorded 614 offences in Somerville in the 12 months to March 2026.

Offence division	Recorded offences
A Crimes against the person	102
B Property and deception offences	356
C Drug offences	46
D Public order and security offences	28
E Justice procedures offences	82
F Other offences	0

That is a calculated rate of 52.2 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
451

2023
515

2024
689

2025
773

2026
614

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

Tyabb (3.9 km)
Langwarrin South (4.9 km)
Pearcedale (5.1 km)
Baxter (5.8 km)
Hastings (7.5 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.

Somerville

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

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