South Australia · Suburb Profile

Seacliff SA — Suburb Profile

Population, median income, rent prices, housing costs and demographics for Seacliff, South Australia. ABS Census 2021.

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 2898.4 people per km².

The most common overseas birthplace in Seacliff is England. The most common religion is No Religion (56% of residents). After English, the most spoken language is Other. 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).

Seacliff Map

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Seacliff Population

residents (Census 2021)

Seacliff Median Income & Rent

💰

Median Income

$948/wk

$49,296 per year

#1638 of 14,663

🏠

Median Rent

$350/wk

$1,517 per month

#3104 of 14,663

👤

Median Age

46years

8 years older than national median

🏡

Mortgage

$1,950/mo

Avg household size: —

Seacliff Demographics

Gender Split

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

Population Density

2898.4

people per km²

2,117 people · 0.7 km²

Households

—

Avg household size

—

Persons per bedroom

$2,364

Family income/wk

Seacliff 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 & Locality (SAL)

Seacliff Housing Tenure

🏠

Owned outright

55.6% 351 dwellings

🏦

Owned with mortgage

44.4% 280 dwellings

Source: ABS Census 2021 — Suburb & Locality (SAL)

Seacliff Country of Birth

Australia

84.1%

England

12.1%

Canada

1.0%

Germany

0.9%

India

0.7%

Hong Kong

0.5%

Fiji

0.3%

Iran

0.3%

Source: ABS Census 2021 G09 — Country of Birth by SAL

Seacliff Religion

No Religion

55.9%

Catholic

17.6%

Anglican

10.6%

Uniting Church

5.6%

Not stated

5.5%

Christian (other)

2.2%

Lutheran

1.7%

Eastern Orthodox

0.8%

Source: ABS Census 2021 G14 — Religion by SAL

Seacliff 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%

Source: ABS Census 2021 G16 — Highest Year of School by SAL

Seacliff Languages Spoken at Home

Other

33.3%

Italian

14.3%

Spanish

12.7%

German

11.1%

IAL Punjabi

7.9%

Persian ED

7.9%

Cantonese

6.3%

Mandarin

6.3%

Source: ABS Census 2021 G13 — Language Spoken at Home by SAL

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

Seacliff 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

Seacliff 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

Seacliff 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

Seacliff 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

Seacliff 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

Seacliff 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

Seacliff Ancestry

English

35.7%

Australian

23.8%

Irish

9.4%

Scottish

9.1%

Other

6.7%

German

6.2%

Italian

3.2%

Dutch

1.7%

Polish

1.4%

Chinese

1.1%

Greek

0.9%

Welsh

0.8%

Source: ABS Census 2021 G08 — Ancestry by SAL

Seacliff 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

Seacliff Need for Assistance

♿

Needs assistance

4.2% 170

✅

No need for assistance

95.8% 3,898

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

Seacliff Volunteering

🤝

Volunteer

22.9% 392

—

Not a volunteer

77.1% 1,317

Source: ABS Census 2021 G23 — Voluntary Work by SAL

Seacliff 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

Seacliff 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

Seacliff 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

Seacliff 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

Seacliff 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

Seacliff Indigenous Population

0.5%

Aboriginal & Torres Strait Islander

Indigenous residents

4,079

Non-Indigenous residents

Source: ABS Census 2021 G07 — Indigenous Status by SAL

Seacliff Long-term Health Conditions

Mental health

178

Arthritis

Asthma

Heart disease

Diabetes

Cancer

Lung condition

Stroke

Kidney disease

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

Seacliff 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

Seacliff 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

Seacliff 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

Seacliff Unpaid Carers

🤲

Provided unpaid assistance

14.7% 251

—

Did not provide

85.3% 1,461

Source: ABS Census 2021 G25 — Unpaid Assistance by SAL

Seacliff 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

Seacliff When Migrants Arrived

Before 1951

1951–1960

1961–1970

1971–1980

1981–1990

1991–2000

2001–2010

117

2011–2015

2016

2017

2018

2019

2020

2021

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

Seacliff 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

Seacliff 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

Seacliff Where Residents Moved From

Same address

1,711

Moved from SA

174

Moved — same area (SA2)

Moved from overseas

Moved from NSW

Moved from VIC

Moved from NT

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

Seacliff 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

Reported offences in 2025-26 — 35 total

Theft

Property Damage

Assault

Break & Enter

Fraud

Offence trend by year:

2021

2022

2023

2024

2025

Source: SA Government Open Data — data.sa.gov.au

Seacliff Schools

schools nearby

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

View all schools in Seacliff with map →

Seacliff Rent Prices & Affordability

18%

of income

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.

If you earn X in Seacliff

Your weekly income

≈ $8,368/month

Median rent $350/wk

Left after rent $1,581/wk

Rent share 18.1%

Cheaper alternatives with similar incomes

Whyalla

Income: $815/wk Rent: $200/wk Save: $150/wk

Kersbrook

Income: $876/wk Rent: $300/wk Save: $50/wk

Largs Bay

Income: $858/wk Rent: $315/wk Save: $35/wk

Penola

Income: $804/wk Rent: $198/wk Save: $152/wk

One Tree Hill

Income: $842/wk Rent: $305/wk Save: $45/wk

Macclesfield (SA)

Income: $791/wk Rent: $308/wk Save: $42/wk

Toorak Gardens

Income: $1,068/wk Rent: $320/wk Save: $30/wk

Royston Park

Income: $959/wk Rent: $330/wk Save: $20/wk

Seacliff vs State & National Average

Nearby Suburbs in SA

Myrtle Bank (SA)

Pop: 3,158 Income: $777/wk Rent: $350/wk

Kurralta Park

Pop: 3,139 Income: $826/wk Rent: $300/wk

Clovelly Park

Pop: 3,126 Income: $755/wk Rent: $358/wk

Trott Park

Pop: 3,124 Income: $766/wk Rent: $350/wk

Craigburn Farm

Pop: 3,099 Income: $1,133/wk Rent: $550/wk

Bordertown

Pop: 3,095 Income: $819/wk Rent: $220/wk

Compare Seacliff

Seacliff vs Myrtle Bank (SA) →Seacliff vs Kurralta Park →Seacliff vs Clovelly Park →Seacliff vs Trott Park →

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 2898.4 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 SA average of $763/wk.Rent affordability is rated as affordable (18.1% of household income). See the full suburb profile above for detailed statistics.

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Data: Australian Bureau of Statistics, Census of Population and Housing 2021. SA2 area: 41311. All dollar figures in AUD.