Suburbs Semaphore Park

South Australia · Suburb Profile

Semaphore Park SA — Suburb Profile

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

The population of Semaphore Park SA is 4,541 according to the 2021 Census. The median personal income in Semaphore Park is $656 per week ($34,112 per year). Median rent in Semaphore Park is $250 per week ($1,083 per month). Semaphore Park has a median age of 46 years, older than the national median of 38. Semaphore Park has a population density of 2374.3 people per km².

The most common overseas birthplace in Semaphore Park is England. The most common religion is No Religion (51% of residents). After English, the most spoken language is Italian. The median monthly mortgage repayment in Semaphore Park is $1,786.

There were 242 recorded offences in Semaphore Park in 2025-26, a rate of 53 offences per 1,000 people. The most common offence category was assault (67 offences).

Semaphore Park Map

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📍 Semaphore Park, South Australia — 34.8574°S, 138.4880°E

Crime: Low Med High 🏫 Schools (10)

Semaphore Park Population

0
residents (Census 2021)

Semaphore Park Median Income & Rent

💰
Median Income
$656/wk
$34,112 per year
#6231 of 14,663
🏠
Median Rent
$250/wk
$1,083 per month
#6115 of 14,663
👤
Median Age
46years
8 years older than national median
🏡
Mortgage
$1,786/mo
Avg household size: 2.2 · 0.7 per bedroom

Semaphore Park Demographics

Gender Split

Male 46.5% (2,112) Female 53.5% (2,431)

Population Density

2374.3
people per km²
4,541 people · 1.9 km²

Households

2.2
Avg household size
0.7
Persons per bedroom
$1,866
Family income/wk

Semaphore Park 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)

Semaphore Park Housing Tenure

🏠
Owned outright
50.7% 562 dwellings
🏦
Owned with mortgage
49.3% 546 dwellings

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

Semaphore Park Country of Birth

Australia
88.7%
England
7.7%
Greece
1.0%
India
0.7%
Germany
0.5%
Canada
0.4%
Brazil
0.3%
Iran
0.3%
China
0.2%
Croatia
0.2%

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

Semaphore Park Religion

No Religion
51.2%
Catholic
20.1%
Anglican
9.2%
Not stated
7.6%
Uniting Church
4.9%
Christian (other)
2.7%
Eastern Orthodox
2.6%
Baptist
1.7%

Source: ABS Census 2021 G14 — Religion by SAL

Semaphore Park Education Level

Year 12 or equivalent
56.2%
Year 10 or equivalent
19.3%
Year 11 or equivalent
18.3%
Year 9 or equivalent
6.2%

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

Semaphore Park Languages Spoken at Home

Italian
24.1%
Other
20.6%
Greek
16.3%
Polish
12.1%
IAL Punjabi
7.8%
Vietnamese
7.1%
Mandarin
6.4%
Persian ED
5.7%

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

Semaphore Park Employment

💼
Employed full-time
32.5% 1,141 people
⏰
Employed part-time
18.5% 649 people
🔍
Unemployed
3.5% 123 people
🏠
Not in labour force
45.5% 1,600 people

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

Semaphore Park Qualifications

Certificate III/IV
38.7%
Bachelor Degree
28.9%
Advanced Diploma/Diploma
18.7%
Postgraduate Degree
7.7%
Graduate Diploma/Certificate
3.6%
Certificate I/II
2.4%

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

Semaphore Park Occupation

Professionals
30.0%
Technicians & Trade Workers
15.8%
Managers
15.2%
Clerical & Administrative
13.4%
Community & Personal Service
13.4%
Labourers
4.9%
Sales Workers
4.7%
Machinery Operators & Drivers
2.5%

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

Semaphore Park Field of Study

Management & Commerce
22.2%
Engineering
16.3%
Society & Culture
15.4%
Health
12.0%
Education
10.3%
Architecture & Building
7.0%
Food, Hospitality & Personal Services
6.1%
Creative Arts
4.3%
Information Technology
2.5%
Natural & Physical Sciences
2.4%
Agriculture & Environment
1.6%

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

Semaphore Park Dwelling Types

Separate house
57.5%
Semi-detached (1 storey)
31.2%
Semi-detached (2+ storey)
11.3%

Source: ABS Census 2021 G36 — Dwelling Structure by SAL

Semaphore Park Weekly Household Income

Nil/Negative/wk
1.4%
$1-$149/wk
0.9%
$150-$299/wk
1.6%
$300-$399/wk
4.9%
$400-$499/wk
10.7%
$500-$649/wk
6.2%
$650-$799/wk
7.8%
$800-$999/wk
8.8%
$1,000-$1,249/wk
7.5%
$1,250-$1,499/wk
7.9%
$1,500-$1,749/wk
5.3%
$1,750-$1,999/wk
4.1%
$2,000-$2,499/wk
9.0%
$2,500-$2,999/wk
7.4%
$3,000-$3,499/wk
6.2%
$3,500-$3,999/wk
3.4%
$4,000+/wk
7.0%

Source: ABS Census 2021 G33 — Household Income by SAL

Semaphore Park Marital Status

💍
Married
38.7% 1,492
↔️
Separated
3.6% 140
📋
Divorced
13.3% 514
🕊️
Widowed
8.6% 331
👤
Never married
35.8% 1,379

Source: ABS Census 2021 G05 — Marital Status by SAL

Semaphore Park Ancestry

English
32.2%
Australian
26.5%
Irish
8.4%
Scottish
7.7%
Other
6.9%
German
6.0%
Italian
4.7%
Greek
1.9%
Aboriginal Australianralian
1.8%
Polish
1.8%
Chinese
1.2%
Croatian
1.0%

Source: ABS Census 2021 G08 — Ancestry by SAL

Semaphore Park School & University Attendance

Primary — Government
31.8%
Secondary — Government
18.4%
Vocational Education
11.9%
Pre-school
10.3%
Primary — Catholic
9.7%
Secondary — Catholic
8.6%
Primary — Other Non-Govt
5.3%
Secondary — Other Non-Govt
4.0%

Source: ABS Census 2021 G15 — Type of Educational Institution by SAL

Semaphore Park Need for Assistance

♿
Needs assistance
10.8% 923
✅
No need for assistance
89.2% 7,612

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

Semaphore Park Volunteering

🤝
Volunteer
14.6% 526
—
Not a volunteer
85.4% 3,085

Source: ABS Census 2021 G23 — Voluntary Work by SAL

Semaphore Park Monthly Mortgage Repayments

$0-$299/mo
3.6%
$300-$449/mo
2.4%
$450-$599/mo
2.8%
$600-$799/mo
4.2%
$800-$999/mo
6.8%
$1,000-$1,399/mo
16.7%
$1,400-$1,799/mo
16.1%
$1,800-$2,399/mo
29.7%
$2,400-$2,999/mo
10.8%
$3,000-$3,999/mo
6.8%

Source: ABS Census 2021 G38 — Mortgage Repayment by SAL

Semaphore Park How People Get to Work

Car (driver)
76.1%
Did not go to work
13.0%
Car (passenger)
4.3%
Train
1.8%
Bus
1.8%
Walked only
1.3%
Bicycle
0.6%
Motorbike/Scooter
0.5%
Other
0.3%
Taxi/Rideshare
0.2%
Truck
0.2%

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

Semaphore Park Car Ownership

0 vehicles
10.3%
1 vehicle
42.0%
2 vehicles
34.6%
3 vehicles
9.1%
4+ vehicles
4.0%

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

Semaphore Park Number of Bedrooms

1 bedroom
4.2%
2 bedrooms
23.5%
3 bedrooms
57.7%
4 bedrooms
12.5%
5 bedrooms
1.9%
6+ bedrooms
0.2%

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

Semaphore Park Population Mobility

12.6%
moved in the last year
35.6%
moved in the last 5 years
6.0%
unemployment rate (Census)
52.4%
labour force participation

Source: ABS Census 2021 G43 — Summary by SAL

Semaphore Park Indigenous Population

2.6%
Aboriginal & Torres Strait Islander
225
Indigenous residents
8,364
Non-Indigenous residents

Source: ABS Census 2021 G07 — Indigenous Status by SAL

Semaphore Park Long-term Health Conditions

Mental health
522
Asthma
180
Arthritis
177
Heart disease
133
Diabetes
131
Lung condition
120
Cancer
80
Stroke
76
Kidney disease
55
Dementia
34

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

Semaphore Park Personal Weekly Income Distribution

$0 or less/wk
8.4%
$1-$149/wk
4.0%
$150-$299/wk
8.1%
$300-$399/wk
6.7%
$400-$499/wk
5.3%
$500-$649/wk
4.1%
$650-$799/wk
8.8%
$800-$999/wk
10.0%
$1,000-$1,249/wk
10.0%
$1,250-$1,499/wk
8.8%
$1,500-$1,749/wk
7.9%
$1,750-$1,999/wk
5.4%
$2,000-$2,999/wk
8.7%
$3,000-$3,499/wk
1.5%
$3,500+/wk
2.3%

Source: ABS Census 2021 G17 — Personal Income by SAL

Semaphore Park Family Structure

Couple — children under 15
33.8%
Couple — no children
29.9%
Couple — no children under 15
15.7%
One parent — children under 15
10.3%
One parent — no children under 15
10.3%

Source: ABS Census 2021 G29 — Family Composition by SAL

Semaphore Park Military Service

🎖️
Current ADF — Regular
0.8% 29
🛡️
Current ADF — Reserves
0.3% 10
🏅
Previously served
3.8% 138
👤
Never served
95.1% 3,454

Source: ABS Census 2021 G22 — ADF Service by SAL

Semaphore Park Unpaid Carers

🤲
Provided unpaid assistance
14.7% 530
—
Did not provide
85.3% 3,077

Source: ABS Census 2021 G25 — Unpaid Assistance by SAL

Semaphore Park Children Ever Born

No children
30.6%
1 child
14.6%
2 children
33.1%
3 children
15.4%
4 children
4.0%
5+ children
2.4%

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

Semaphore Park When Migrants Arrived

Before 1951
15
1951–1960
107
1961–1970
168
1971–1980
93
1981–1990
90
1991–2000
68
2001–2010
113
2011–2015
93
2016
27
2017
20
2018
13
2019
37
2020
4
2021
5

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

Semaphore Park Unpaid Domestic Work

Less than 5 hours
19.3%
5–14 hours
29.7%
15–29 hours
13.4%
30+ hours
8.6%
Did not do domestic work
28.9%

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

Semaphore Park Household Size

1 person
36.5%
2 persons
33.9%
3 persons
13.4%
4 persons
11.4%
5 persons
3.4%
6+ persons
1.3%

Source: ABS Census 2021 G35 — Household Size by SAL

Semaphore Park Where Residents Moved From

Same address
3,650
Moved from SA
324
Moved — same area (SA2)
70
Moved from overseas
32
Moved from NSW
30
Moved from VIC
22
Moved from NT
9
Moved from QLD
7
Moved from WA
7
Moved from ACT
5

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

Semaphore Park Family Blending

Intact family — no other children
83.6%
Step family — no other children
10.7%
Blended family — no other children
4.8%
Other couple — children only
1.0%

Source: ABS Census 2021 G31 — Family Blending by SAL

Semaphore Park Crime Statistics

Reported offences in 2025-26 — 242 total

Assault
67
Theft
61
Property Damage
51
Break & Enter
44
Other Against Person
11
Robbery
6
Fraud
2

Offence trend by year:

2021
2022
2023
2024
2025

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

Semaphore Park Schools

10
schools nearby
7
government
1002
avg ICSEA score
3,968
total students
Portside Christian College Independent
Combined · R-12 · 626 students
1067
ICSEA
West Lakes Shore School Government
Primary · R-6 · 554 students
1060
ICSEA
Dominican School Catholic
Primary · R-6 · 230 students
1048
ICSEA
Westport Primary School Government
Primary · R-6 · 421 students
1025
ICSEA
Alberton Primary School Government
Primary · R-6 · 262 students
1002
ICSEA
Seaton High School Government
Secondary · U, 7-12 · 917 students
1001
ICSEA
Hendon Primary School Government
Primary · U, R-6 · 270 students
965
ICSEA
Le Fevre High School Government
Secondary · U, 7-12 · 456 students
951
ICSEA
Le Fevre Peninsula Primary School Government
Primary · U, R-6 · 232 students
902
ICSEA
Indie School Port Adelaide Campus Independent
Secondary

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

View all schools in Semaphore Park with map →

Semaphore Park Rent Prices & Affordability

20%
of income
Affordable
Household Income $1,262/wk
Median Rent $250/wk
Rent-to-Income 19.8%

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

If you earn X in Semaphore Park

≈ $5,469/month
Median rent $250/wk
Left after rent $1,012/wk
Rent share 19.8%

Cheaper alternatives with similar incomes

Balaklava
Income: $611/wk Rent: $227/wk Save: $23/wk
Angaston
Income: $733/wk Rent: $249/wk Save: $1/wk
Novar Gardens
Income: $630/wk Rent: $165/wk Save: $85/wk
Loxton
Income: $664/wk Rent: $221/wk Save: $29/wk
Monash (SA)
Income: $755/wk Rent: $230/wk Save: $20/wk
Renmark
Income: $602/wk Rent: $200/wk Save: $50/wk
Whyalla Playford
Income: $771/wk Rent: $200/wk Save: $50/wk
Millicent
Income: $556/wk Rent: $175/wk Save: $75/wk

Semaphore Park vs State & National Average

Nearby Suburbs in SA

Salisbury Park
Pop: 2,276 Income: $606/wk Rent: $275/wk
Marino
Pop: 2,277 Income: $932/wk Rent: $400/wk
Melrose Park (SA)
Pop: 2,319 Income: $832/wk Rent: $350/wk
Evanston Gardens
Pop: 2,347 Income: $791/wk Rent: $300/wk
Linden Park
Pop: 2,367 Income: $874/wk Rent: $413/wk
Clarence Gardens
Pop: 2,373 Income: $979/wk Rent: $350/wk

Compare Semaphore Park

Semaphore Park vs Salisbury Park →Semaphore Park vs Marino →Semaphore Park vs Melrose Park (SA) →Semaphore Park vs Evanston Gardens →

Frequently Asked Questions About Semaphore Park

What is the population of Semaphore Park SA?

The population of Semaphore Park SA is 4,541 according to the ABS Census 2021.The suburb has a population density of 2374.3 people per km².Semaphore Park is ranked #1,709 out of 14,663 suburbs by population.

What is the median income in Semaphore Park?

The median personal income in Semaphore Park SA is $656 per week, or $34,112 per year.The median household income is $1,262 per week.Family income is $1,866 per week.Semaphore Park is ranked #6,231 by income out of 14,663 Australian suburbs.

How much is rent in Semaphore Park?

Median rent in Semaphore Park SA is $250 per week ($1,083 per month).Rent represents 19.8% of household income, which is considered affordable.Semaphore Park ranks #6,115 out of 14,663 suburbs by rent.

What are mortgage repayments in Semaphore Park?

The median monthly mortgage repayment in Semaphore Park SA is $1,786. This data comes from the ABS Census 2021 and reflects mortgage repayments for owner-occupied dwellings.

What is the median age in Semaphore Park?

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

Is Semaphore Park a good suburb to live in?

Semaphore Park is a suburb in South Australia with a population of 4,541.The median income is $656/wk, which is below the SA average of $763/wk.Rent affordability is rated as affordable (19.8% 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: 41330. All dollar figures in AUD.