Seacliff, SA: suburb profile

The population of Seacliff SA is 2,117 according to the 2021 Census. The median personal income in Seacliff is $948 per week ($49,296 per year). Median rent in Seacliff is $350 per week ($1,517 per month). Seacliff has a median age of 46 years, older than the national median of 38. Seacliff has a population density of 2,898 people per km².

The most common overseas birthplace in Seacliff is England. The most common religion is No religion (53.0% of residents). After English, the most spoken language is Italian. The median monthly mortgage repayment in Seacliff is $1,950.

There were 35 recorded offences in Seacliff in 2025-26, a rate of 17 offences per 1,000 people. The most common offence category was theft (15 offences).

Population
2,117
Census 2021
Median income
$948/wk
Personal, Census 2021
Median rent
$350/wk
Weekly, Census 2021
Median age
46years
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.

Seacliff vs the typical SA suburb

The median personal income in Seacliff is $948 a week, 25% above the typical SA suburb ($759). That ranks 89th of 710 SA suburbs with 200 or more residents. Median rent is $350 a week, $50 more than the typical SA suburb. Rent takes 18.1% of the median household income here, against 19.5% in the typical SA suburb. The median resident is 46, 3 years older 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.
MeasureSeacliffTypical SADifferenceTypical Australia
Personal income$948/wk$759/wk +25%$766/wk
Household income$1,931/wk$1,494/wk +29%$1,637/wk
Rent$350/wk$300/wk +17%$330/wk
Mortgage repayment$1,950/mo$1,534/mo +27%$1,733/mo
Median age4643 +3 yrs42
Rent share of household income18.1%19.5% −1.3 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 Seacliff, the typical SA suburb and the typical Australian suburb.

Seacliff Population

2,117 residents at the 2021 Census.

Seacliff Median Income & Rent

Median Income
$948/wk
$49,296 per year
Ranked 1,638 of 14,663
Median Rent
$350/wk
$1,517 per month
Ranked 3,104 of 14,663
Median Age
46years
8 years older than the national median
Mortgage
$1,950/mo
Avg household size: 2.4 · 0.8 per bedroom

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

Seacliff Rent Prices & Affordability

18% of median household income goes on median rent

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

Household income $1,931/wk
Median rent $350/wk
Rent to income 18.1%

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

Median rent in Seacliff against your income

About $8,368 a month
Median rent $350/wk
Left after rent $1,581/wk
Rent share 18.1%

Seacliff Schools

9
schools nearby
6
government
1058
avg ICSEA score
4,312
total students
McAuley Community School Catholic
Primary · R-6 · 451 students
1099
ICSEA
Seacliff Primary School Government
Primary · R-6 · 356 students
1094
ICSEA
Stella Maris Parish School Catholic
Primary · R-6 · 429 students
1086
ICSEA
Christ the King School Catholic
Primary · R-6 · 179 students
1079
ICSEA
Brighton Primary School Government
Primary · U, R-6 · 726 students
1077
ICSEA
Seaview Downs Primary School Government
Primary · R-6 · 324 students
1051
ICSEA
Seaview High School Government
Secondary · U, 7-12 · 1,377 students
1038
ICSEA
Warradale Primary School Government
Primary · R-6 · 286 students
1032
ICSEA
Darlington Primary School Government
Primary · U, R-6 · 184 students
964
ICSEA

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

All schools near Seacliff, with a map

Seacliff Map

Seacliff, South Australia Map data: OpenStreetMap
Loading map…

Seacliff, South Australia: 35.0336°S, 138.5206°E

Seacliff Circle size: offences per 1,000 residents Schools (9)

People in Seacliff

Demographics

Gender Split

Male 47.9% (1,013) Female 52.1% (1,101)

Population Density

2,898
people per km²
2,117 people · 0.7 km²

Households

2.4
Avg household size
0.8
Persons per bedroom
$2,364
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
9.2%
Scotland
1.2%
Ireland
1.0%
South Africa
0.9%
United States of America
0.8%
New Zealand
0.8%
Germany
0.6%

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

Most common languages at home other than English

Italian
1.0%
German
0.8%
Spanish
0.7%
Mandarin
0.5%
Persian (excluding Dari)
0.4%
Arabic
0.4%
Japanese
0.3%

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

Ancestry

English
47.2%
Australian
31.6%
Irish
12.4%
Scottish
12.0%
German
8.2%
Italian
4.3%
Dutch
2.3%
Polish
1.8%
Chinese
1.5%
Greek
1.1%
Welsh
1.1%

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
53.0%
Catholic
16.7%
Anglican
10.0%
Uniting Church
5.3%
Not stated
5.2%
Christian (other)
2.1%
Lutheran
1.7%
Eastern Orthodox
0.8%

Source: ABS Census 2021, G14 Religion by SAL

Indigenous Population

0.6%
Aboriginal & Torres Strait Islander

Source: ABS Census 2021, G07 Indigenous Status by SAL

Marital Status

Married
52.0% 929
Separated
2.6% 47
Divorced
10.3% 184
Widowed
4.4% 79
Never married
30.6% 546

Source: ABS Census 2021, G05 Marital Status by SAL

Family Structure

Couple: children under 15
37.4%
Couple: no children
34.5%
Couple: no children under 15
15.8%
One parent: children under 15
6.9%
One parent: no children under 15
5.4%

Source: ABS Census 2021, G29 Family Composition by SAL

Household Size

1 person
24.0%
2 persons
40.9%
3 persons
15.5%
4 persons
13.7%
5 persons
4.3%
6+ persons
1.5%

Source: ABS Census 2021, G35 Household Size by SAL

Homes in Seacliff

Housing Tenure

Of the 846 occupied private dwellings in Seacliff at the 2021 Census, 23.6% were rented, 41.5% owned outright and 33.1% owned with a mortgage.

Other tenure type
0.5% 4 dwellings
Owned outright
41.5% 351 dwellings
Owned with mortgage
33.1% 280 dwellings
Rented
23.6% 200 dwellings
Tenure type not stated
0.6% 5 dwellings

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

Dwelling Types

Separate house
77.1%
Semi-detached (2+ storey)
11.8%
Semi-detached (1 storey)
11.1%

Source: ABS Census 2021, G36 Dwelling Structure by SAL

Number of Bedrooms

1 bedroom
2.2%
2 bedrooms
24.6%
3 bedrooms
49.3%
4 bedrooms
20.2%
5 bedrooms
3.0%
6+ bedrooms
0.7%

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

Monthly Mortgage Repayments

$0-$299/mo
7.1%
$300-$449/mo
2.5%
$450-$599/mo
2.1%
$600-$799/mo
3.7%
$800-$999/mo
4.6%
$1,000-$1,399/mo
15.8%
$1,400-$1,799/mo
12.4%
$1,800-$2,399/mo
21.6%
$2,400-$2,999/mo
14.9%
$3,000-$3,999/mo
15.4%

Source: ABS Census 2021, G38 Mortgage Repayment by SAL

Car Ownership

0 vehicles
3.6%
1 vehicle
38.2%
2 vehicles
42.8%
3 vehicles
10.4%
4+ vehicles
4.9%

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

Work, income and education in Seacliff

Employment

Employed full-time
36.2% 600 people
Employed part-time
24.4% 404 people
Unemployed
3.1% 51 people
Not in labour force
36.3% 602 people

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

Occupation

Professionals
38.7%
Managers
17.5%
Clerical & Administrative
11.2%
Community & Personal Service
11.2%
Technicians & Trade Workers
11.0%
Sales Workers
5.2%
Labourers
2.9%
Machinery Operators & Drivers
2.4%

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

Weekly Household Income

Nil/Negative/wk
0.8%
$1-$149/wk
0.4%
$150-$299/wk
0.6%
$300-$399/wk
2.1%
$400-$499/wk
3.9%
$500-$649/wk
4.2%
$650-$799/wk
4.0%
$800-$999/wk
6.8%
$1,000-$1,249/wk
9.1%
$1,250-$1,499/wk
8.1%
$1,500-$1,749/wk
5.7%
$1,750-$1,999/wk
5.8%
$2,000-$2,499/wk
11.1%
$2,500-$2,999/wk
7.1%
$3,000-$3,499/wk
6.4%
$3,500-$3,999/wk
4.6%
$4,000+/wk
19.2%

Source: ABS Census 2021, G33 Household Income by SAL

Personal Weekly Income Distribution

$0 or less/wk
8.2%
$1-$149/wk
4.8%
$150-$299/wk
6.0%
$300-$399/wk
3.2%
$400-$499/wk
2.6%
$500-$649/wk
4.0%
$650-$799/wk
7.7%
$800-$999/wk
8.3%
$1,000-$1,249/wk
9.5%
$1,250-$1,499/wk
8.2%
$1,500-$1,749/wk
8.9%
$1,750-$1,999/wk
6.4%
$2,000-$2,999/wk
12.9%
$3,000-$3,499/wk
3.1%
$3,500+/wk
6.2%

Source: ABS Census 2021, G17 Personal Income by SAL

How People Get to Work

Car (driver)
70.5%
Did not go to work
14.0%
Train
6.8%
Car (passenger)
3.7%
Bus
1.6%
Bicycle
0.9%
Walked only
0.9%
Other
0.8%
Motorbike/Scooter
0.5%
Truck
0.3%

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

Education Level

Year 12 or equivalent
73.0%
Year 11 or equivalent
15.3%
Year 10 or equivalent
9.5%
Year 9 or equivalent
2.3%

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

Bachelor Degree
39.0%
Certificate III/IV
20.7%
Advanced Diploma/Diploma
17.2%
Postgraduate Degree
15.8%
Graduate Diploma/Certificate
6.2%
Certificate I/II
1.1%

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

Field of Study

Management & Commerce
23.1%
Health
18.6%
Society & Culture
15.5%
Engineering
11.5%
Education
10.1%
Architecture & Building
5.5%
Creative Arts
4.8%
Food, Hospitality & Personal Services
4.6%
Natural & Physical Sciences
3.1%
Information Technology
2.0%
Agriculture & Environment
1.2%

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

School & University Attendance

Primary: Government
27.7%
Secondary: Government
17.2%
Pre-school
10.5%
Secondary: Other Non-Govt
10.5%
Vocational Education
9.9%
Secondary: Catholic
9.0%
Primary: Catholic
8.2%
Primary: Other Non-Govt
7.0%

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
92.2%
Has need for assistance
3.8%
Need for assistance not stated
4.3%

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

Long-term Health Conditions

Mental health
178
Arthritis
82
Asthma
82
Heart disease
55
Diabetes
47
Cancer
45
Lung condition
41
Stroke
21
Kidney disease
11

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

Unpaid Carers

Provided unpaid assistance
14.7% 251
Did not provide
85.3% 1,461

Source: ABS Census 2021, G25 Unpaid Assistance by SAL

Volunteering

Volunteer
22.9% 392
Not a volunteer
77.1% 1,317

Source: ABS Census 2021, G23 Voluntary Work by SAL

Military Service

Current ADF: Reserves
0.2% 3
Previously served
3.8% 66
Never served
96.0% 1,648

Source: ABS Census 2021, G22 ADF Service by SAL

Children Ever Born

No children
33.1%
1 child
14.5%
2 children
34.5%
3 children
12.6%
4 children
5.2%

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

When Migrants Arrived

Before 1951
9
1951: 1960
34
1961: 1970
76
1971: 1980
41
1981: 1990
58
1991: 2000
45
2001: 2010
117
2011: 2015
53
2016
9
2017
12
2018
7
2019
9
2020
10
2021
10

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

Population Mobility

15.4%
moved in the last year
40.0%
moved in the last 5 years
4.5%
unemployment rate (Census)
62.8%
labour force participation

Source: ABS Census 2021, G43 Summary by SAL

Where Residents Moved From

Same address
1,711
Moved from SA
174
Moved: same area (SA2)
38
Moved from overseas
29
Moved from NSW
24
Moved from VIC
21
Moved from NT
3

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

Unpaid Domestic Work

Less than 5 hours
22.7%
5: 14 hours
38.2%
15: 29 hours
16.1%
30+ hours
7.4%
Did not do domestic work
15.7%

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

Family Blending

Intact family: no other children
91.0%
Step family: no other children
7.8%
Blended family: no other children
1.2%

Source: ABS Census 2021, G31 Family Blending by SAL

Seacliff Crime Statistics

35 reported offences in 2025-26, by category.

Theft
15
Property Damage
8
Assault
7
Break & Enter
4
Fraud
1

Total offences by year

2021
2022
2023
2024
2025

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

Cheaper alternatives with similar incomes

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Income: $815/wk Rent: $200/wk $150/wk less rent
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Income: $876/wk Rent: $300/wk $50/wk less rent
Largs Bay
Income: $858/wk Rent: $315/wk $35/wk less rent
Penola
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One Tree Hill
Income: $842/wk Rent: $305/wk $45/wk less rent
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Income: $791/wk Rent: $308/wk $42/wk less rent
Toorak Gardens
Income: $1,068/wk Rent: $320/wk $30/wk less rent
Willunga
Income: $780/wk Rent: $330/wk $20/wk less rent

Suburbs near Seacliff

The closest suburb to Seacliff is South Brighton, 0.9 km away.

South Brighton
0.9 km away · income $820/wk · rent $335/wk
Seacliff Park
1.3 km away · income $856/wk · rent $370/wk
Brighton (SA)
1.8 km away · income $875/wk · rent $360/wk
Dover Gardens
1.8 km away · income $728/wk · rent $339/wk
Seaview Downs
1.9 km away · income $796/wk · rent $385/wk
Marino
1.9 km away · income $932/wk · rent $400/wk

Compare Seacliff

Frequently Asked Questions About Seacliff

What is the population of Seacliff SA?

The population of Seacliff SA is 2,117 according to the ABS Census 2021. The suburb has a population density of 2,898 people per km². Seacliff is ranked #2,939 out of 14,663 suburbs by population.

What is the median income in Seacliff?

The median personal income in Seacliff SA is $948 per week, or $49,296 per year. The median household income is $1,931 per week. Family income is $2,364 per week. Seacliff is ranked #1,638 by income out of 14,663 Australian suburbs.

How much is rent in Seacliff?

Median rent in Seacliff SA is $350 per week ($1,517 per month). Rent represents 18.1% of household income, which is considered affordable. Seacliff ranks #3,104 out of 14,663 suburbs by rent.

What are mortgage repayments in Seacliff?

The median monthly mortgage repayment in Seacliff SA is $1,950. This data comes from the ABS Census 2021 and reflects mortgage repayments for owner-occupied dwellings.

What is the median age in Seacliff?

The median age in Seacliff SA is 46 years. This is older than the national median age of 38 years.

Is Seacliff a good suburb to live in?

Seacliff is a suburb in South Australia with a population of 2,117. The median income is $948/wk, which is above the typical SA suburb ($759/wk). Rent affordability is rated as affordable (18.1% 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: 41311. All dollar figures in AUD.