Seaford, Victoria
ABS Census 2021 Greater Melbourne

About

Seaford (VIC 3198): population 17,215, median age 40, median household income $1,500/week, SEIFA IRSD decile 5. Victorian suburb guide with housing, jobs and community insights.

Seaford is a suburb in Frankston, Victoria (postcode 3198), located in the Greater Melbourne region. At the ABS Census 2021 it had a population of 17,215 people.

At a glance

Population (2021)
17,215
Median age
40
Household income
$1,500/wk
Weekly rent
$351
Unemployment
5%
SEIFA IRSD decile
5 / 10

Age distribution

0-4
6.8%
5-14
10.8%
15-19
4.5%
20-24
4.7%
25-34
13.7%
35-44
15.6%
45-54
14.2%
55-64
11.8%
65-74
9.8%
75-84
5.9%
85+
2.2%

Housing tenure

Owned
27.5%
Mortgage
35.4%
Rented
32.9%
Other
2.6%

Key statistics

IndicatorValue
Postcode3198
Population (2021)17,215
Males8,436 (49.0%)
Females8,780 (51.0%)
Median age40 years
Average household size2.3
Median weekly household income$1,500
Median weekly family income$2,081
Median weekly rent$351
Median monthly mortgage$1,850
Labour force8,746
Unemployment rate5%
Participation rate65.8%
Born overseas19.9%
Separate houses68.0%
Worked at home22.9%
SEIFA IRSD decile5 of 10
Bachelor degree or higher37.6%
Completed Year 12 or equivalent57.8%
Aboriginal and/or Torres Strait Islander residents1.6%
Residents needing assistance with core activities6.4%
Households with 2+ vehicles51.0%
Distance from Melbourne CBD36.1 km (straight line)

Age profile

Median age: 40 years. Residents under 15: 17.6%. Residents aged 65 and over: 17.9%.

Age groupPeopleShare of population
0-41,1796.8%
5-141,85310.8%
15-197834.5%
20-248024.7%
25-342,35213.7%
35-442,68215.6%
45-542,44514.2%
55-642,03611.8%
65-741,6829.8%
75-841,0165.9%
85 and over3852.2%

Households and families

Household typeCountShare of households
Total households7,191
Average household size2.3
One person2,42033.7%
Two persons2,30632.1%
Three persons1,13915.8%
Four persons94213.1%
Five persons2874.0%
Six or more persons921.3%
Family typeCountShare of families
Total families4,580
Couples with children1312.9%
Couples without children1,65136.0%
One-parent families1,00221.9%
Other families992.2%

Children ever born

MeasureValue
Average children per woman aged 15+1.5
Women with no children33.8%
Women with three or more children21.9%

Of the 1,825 couple families with children in Seaford, 12.6% are step or blended families.

Marital status

Marital status of residents aged 15 and over in Seaford.

StatusShare of adults
Married (registered marriage)37.5%
Married (de facto)15.2%
Not married47.3%

Housing

DwellingsCountShare of dwellings
Total dwellings7,785
Occupied7,19192.4%
Unoccupied5987.7%
Dwelling structureCountShare of dwellings
Separate house5,29568.0%
Semi-detached or townhouse1,66621.4%
Flat or apartment1822.3%
Other dwelling430.6%
TenureCountShare of households
Owned outright1,97827.5%
Owned with a mortgage2,54435.4%
Rented2,36832.9%
Other tenure1882.6%

Weekly rent

Rent bandShare of renting households
Under $350 per week45.5%
$350 to $549 per week49.6%
$550 or more per week4.9%

11.5% of renting households rent through a state or community housing provider.

Monthly mortgage repayments

Repayment bandShare of mortgaged households
Under $1,00017.1%
$1,000 to $1,79930.3%
$1,800 to $2,99940.0%
$3,000 or more12.6%

Bedrooms per dwelling

BedroomsShare of dwellings
None or one bedroom4.9%
Two bedrooms23.1%
Three bedrooms53.7%
Four or more bedrooms18.3%

Employment

Labour force statusCountShare
Labour force8,746
Employed8,30995.0%
Unemployed4385.0%
Not in the labour force4,550
Unemployment rate5%
Participation rate65.8%

34.2% of employed residents work part time, fewer than 35 hours per week.

Household income

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

Weekly household incomeShare of households
Under $65020.0%
$650 to $1,49929.9%
$1,500 to $2,99931.7%
$3,000 or more18.3%

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

Weekly personal incomeShare of residents 15+
Under $50033.1%
$500 to $99925.8%
$1,000 to $1,99930.2%
$2,000 or more10.9%

Travel to work

MethodCountShare of workers
Car driver4,57355.0%
Car passenger2342.8%
Train1221.5%
Bus450.5%
Tram00.0%
Bicycle400.5%
Walked only770.9%
Worked at home1,90022.9%

Religious affiliation

ReligionCountShare of residents
Christianity6,35836.9%
No religion8,80751.2%
Islam1160.7%
Hinduism1180.7%
Buddhism1821.1%
Judaism560.3%
Other or not stated1,5789.2%

Socio-economic profile (SEIFA 2021)

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

IndexScoreDecilePercentile
IRSD (disadvantage)997541
IRSAD (advantage and disadvantage)9795
IER (economic resources)9703
IEO (education and occupation)9936

Where residents were born

79.0% of residents were born in Australia and 21.0% were born overseas. The most common overseas birthplaces in Seaford are listed below.

Country of birthPeopleShare of residents
England8605.3%
New Zealand4022.5%
Scotland1360.8%
Germany1340.8%
China (excludes SARs and Taiwan)1170.7%
Ireland1020.6%

When overseas-born residents arrived

Year of arrivalShare of overseas-born residents
2016 to 20217.4%
2011 to 201511.7%
2001 to 201019.4%
Before 200161.6%

Languages spoken at home

89.8% of residents speak only English at home. The most common other languages in Seaford are listed below. Across all households, 1.1% of residents speak English not well or not at all.

LanguagePeopleShare of residents
Greek1581.0%
Russian1260.8%
Chinese: Mandarin1210.7%
Spanish1020.6%
Italian950.6%
German760.5%

Ancestry

Residents of Seaford most commonly report the following ancestries.

AncestryResponsesShare of responses
English7,04029.9%
Australian6,05225.7%
Irish2,2089.4%
Scottish1,9558.3%
German7353.1%
Italian6692.8%

Work and industry

The largest employment sectors for Seaford residents are listed below.

Industry of employmentWorkersShare of workers
Health Care and Social Assistance1,17614.9%
Construction1,15214.6%
Retail Trade80510.2%
Education and Training7849.9%
Manufacturing6698.5%
Professional, Scientific and Technical Services5166.5%

The most common occupations among Seaford residents are listed below.

OccupationWorkersShare of workers
Professionals1,69720.9%
Technicians and Trades Workers1,43117.6%
Clerical and Administrative Workers1,05613.0%
Managers99712.3%
Community and Personal Service Workers95811.8%
Labourers7519.2%

Education

Of residents attending an education institution in Seaford, 13.6% are at university or higher education, 11.8% are at TAFE or vocational education, and 70.8% are at school.

57.8% of residents aged 15 and over have completed Year 12 or equivalent.

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

Field of studyPeopleShare
Management and Commerce1,44818.9%
Engineering and Related Technologies1,18715.5%
Society and Culture1,09314.3%
Health88811.6%
Education78210.2%
Architecture and Building7109.3%

Long-term health conditions

48.1% of residents report no long-term health condition. The most commonly reported conditions in Seaford are listed below.

Health conditionPeopleShare of residents
Mental health condition (including depression or anxiety)1,99110.2%
Asthma1,8199.3%
Arthritis1,7038.7%
Diabetes (excluding gestational diabetes)8944.6%
Heart disease (including heart attack or angina)7553.9%
Cancer (including remission)5372.7%
Lung condition (including COPD or emphysema)4302.2%
Stroke2101.1%
Kidney disease1971.0%
Dementia (including Alzheimer's)790.4%

23.5% of residents report one condition, 8.1% report two, and 4.3% report three or more.

Community and care

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

Community activityShare
Volunteers for an organisation or group11.0%
Provides unpaid assistance to a person with a disability or health condition13.8%
Provides unpaid child care55.5%
Does 15 or more hours of unpaid domestic work19.4%
Has served or is serving in the Australian Defence Force2.7%

Moving and stability

MobilityShare of residents
Same address 1 year ago87.4%
Moved within Victoria in the last year9.5%
Moved interstate in the last year0.4%
Moved from overseas in the last year0.5%
Same address 5 years ago61.8%
Moved within Victoria in the last 5 years28.1%
Moved interstate in the last 5 years1.9%
Moved from overseas in the last 5 years2.4%

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

Crime and safety

Victoria Police recorded 2,475 offences in Seaford in the 12 months to March 2026.

Offence divisionRecorded offences
A Crimes against the person330
B Property and deception offences1,369
C Drug offences229
D Public order and security offences133
E Justice procedures offences413
F Other offences1

That is a calculated rate of 143.8 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 Frankston local government area recorded 11,751 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
1,660
2023
1,971
2024
2,467
2025
2,777
2026
2,475

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

<iframe src="https://www.openstreetmap.org/export/embed.html?bbox=145.1302%2C-38.1152%2C145.1542%2C-38.0972&layer=mapnik&marker=-38.106241%2C145.142168" width="100%" height="320" style="border:0;border-radius:12px;max-width:100%;" loading="lazy" title="Map of Seaford, Victoria"></iframe>

Map data © OpenStreetMap contributors.

Nearby suburbs

Browse more suburbs in Frankston, or explore the wider Greater Melbourne 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.

Population 17215
Median Age 40
Average Household Size 2.3
Median Weekly Household Income $1500
Median Weekly Rent $351
Median Monthly Mortgage $1850
Unemployment Rate 5%
Participation Rate 65.8%
Born Overseas 19.9%
Separate House 68%
Worked at Home 22.9%
SEIFA IRSD Decile 5
SEIFA IRSD Percentile 41
SEIFA IRSAD Decile 5
Median Weekly Family Income $2081
Postcode 3198

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Seaford, Victoria 3198, Australia

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