Semaphore South at a glance
Weekly rent
$775
Houses · units $600
Population
1,031
Median age 44
Walk score
10
Very car dependent
Rent: SA rental bond data, June 2026 · Population: 2021 Census
Market
House prices in Semaphore South.
Median house price
Too few sales for a median
Only 4 house sales were recorded in the latest published quarter (updated October 2026), too few for a reliable median. We publish one from 5 sales or more. How we source data.
Sales data as of October 2026
Rental and ownership
Weekly rent (house)
$775/wk
Weekly rent (unit)
$600/wk
Owner occupied
68%
Renter occupied
29%
At a deeper level
1,031
Median age: 44
Rental data as of June 2026· rental-sa
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The brief
What to know about Semaphore South.
The postcode for Semaphore South is 5019 (SA), City of Charles Sturt, part of Greater Adelaide.
Semaphore South (5019) sits in the Charles Sturt region of South Australia.
Semaphore South has roughly 1,031 residents, with an established, older skew. Households are mostly owner-occupied. Daily life is car-dependent: most residents drive to work, school and the shops.
Day to day
What it’s like to live here.
Semaphore South scores 10/100 on walkability, which makes it car-dependent with limited public transport. Plan for two cars in a typical household, especially if work isn't local.
Summer days here average around 28°C (warm), winter mornings around 7°C (cool). Annual rainfall lands at about 448mm. Data comes from the Bureau of Meteorology's Adelaide (Kent Town) station, 11.1km away.
Schooling within or near the suburb covers 8 government primary, 3 government secondary, 5 Catholic, 2 independent.
Who lives here
Demographics.
The 2021 Census put Semaphore South's population at 1,031, with a median age of 44. That sits as an established, older skew. Households are mostly owner-occupied (68% own, 29% rent), which shapes everything from school catchment stability to how often properties turn over. The household mix skews family-dominated (62% family households, 34% lone person), so amenity decisions tend to follow what families want: parks, schools, supermarkets.
Population
1,031
Median age
44
Family households
62%
Lone person
34%
Demographics data as of May 2026· ABS 2021 Census
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Safety
Crime and safety.
42
total offences in 2025-26
Top offence categories
Crime statistics are reported at LGA level and may cover a broader area than this suburb.
Source: State Police Open Data
Crime data as of June 2026· State Police Open Data
Getting around
Walkability.
10
0
100
Scores calculated from OpenStreetMap data (ODbL)
Walkability data as of May 2026· OpenStreetMap
Place
Location.
Amenities
Transport
Education
Schools in Semaphore South.
Local schools for Semaphore South
View the catchment for each school to find out more.
Government School Catchment
Le Fevre High School
Westport Primary School
Le Fevre Peninsula Primary School
© ACARA, licensed under CC BY 4.0.
Climate
Weather year-round.
Annual Rainfall
448 mm
Hottest Month (avg max)
28.0°C
Coldest Month (avg min)
7.0°C
Monthly Rainfall (mm)
Weather data from BOM station Adelaide (Kent Town) (11 km away)
Climate data as of May 2026· Bureau of Meteorology
Frequently asked
About Semaphore South.
- What is the Semaphore South postcode?
- Semaphore South is in the 5019 postcode, in SA, in the City of Charles Sturt region.
- Where is Semaphore South?
- Semaphore South is a suburb of Adelaide, in SA 5019. It is part of the Greater Adelaide area, in the City of Charles Sturt region.
- What is the average rent in Semaphore South?
- The median weekly rent for houses is $775, for units it's $600.
- What schools are in Semaphore South?
- There are 20 schools serving Semaphore South on this page, including Le Fevre High School, Dominican School, Westport Primary School.
- How walkable is Semaphore South?
- Semaphore South has a Walk Score of 10 out of 100, highly car-dependent. transit score 0, bike score 100.
- What suburbs are near Semaphore South?
- Semaphore South is close to Semaphore Park, Ethelton, Semaphore, Glanville, New Port.
- What is the population of Semaphore South?
- The population of Semaphore South is approximately 1,031 (2021 Census). The median age is 44.
Semaphore South
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Sources cited
Median, growth and rental data from state revenue offices and ABS. Census from ABS 2021. Climate from BoM. Hazard from Geoscience Australia. School data from ACARA. Crime from state police open data. Full methodology →
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