Semaphore at a glance
Median house
$1,472,500
+24.3% year on year
Median unit
$274,320
Walk score
100
Walker's paradise
Population
2,749
Median age 50
The brief
What to know about Semaphore.
The postcode for Semaphore is 5019 (SA), part of Greater Adelaide.
The median house price in Semaphore is $1,472,500.
Semaphore (5019) sits in the Charles Sturt region of South Australia. The median house here is $1,472,500, well above the South Australia median of around $720K. Prices have moved +24.3% over the past year, well clear of the South Australia average (5%).
Semaphore has roughly 2,749 residents, with an established, older skew. Households are mostly owner-occupied. Day-to-day life here is very walkable, with most errands manageable on foot.
Day to day
What it’s like to live here.
Semaphore scores 100/100 on walkability, which makes it very walkable with limited public transport. Coffee, groceries and a meal out are mostly walking-distance, which keeps a household viable on one car.
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's population at 2,749, with a median age of 50. That sits as an established, older skew. Households are mostly owner-occupied (68% own, 30% rent), which shapes everything from school catchment stability to how often properties turn over. The household mix skews family-dominated (65% family households, 32% lone person), so amenity decisions tend to follow what families want: parks, schools, supermarkets.
Population
2,749
Median age
50
Family households
65%
Lone person
32%
Demographics data as of May 2026· ABS 2021 Census
Houses change hands at $1,472,500 on a typical sale, well above the South Australia median. Units come in around $274,320, roughly 81% below the house median. The last 12 months delivered strong growth (+24.3%) — well clear of the long-run average for the state.
For buyers
A 20% deposit on the median house works out to roughly $295,000. Prices sit well above the South Australia median, so plan for a stretched deposit and shop carefully on borrowing capacity.
For sellers
Twelve-month growth is +24.3%, supporting confident pricing at the upper end of recent comparables.
Market
The price of a home here.
Median house price
$1,472,500
+24.3% over the past year. Median unit price $274,320.
Sales data as of July 2026· sales-sa
Rental and ownership
Weekly rent (house)
$650/wk
Weekly rent (unit)
$560/wk
Owner occupied
68%
Renter occupied
30%
At a deeper level
$1,472,500
+24.3% annual growth
$274,320
2,749
Median age: 50
Rental data as of March 2026· rental-sa
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For investors
Investment overview.
Gross rental yield on houses sits at 2.30% (median rent $650/wk against a $1,472,500 price tag). Units yield 10.62% gross, often the better cash-flow play for first-time investors. With 30% of households renting, the leasing market is established and vacancy risk tends to be lower than in owner-dominated suburbs. The 12-month growth of +24.3% adds a capital-growth case on top of the yield.
Gross Yield (House)
Source: data.sa.gov.au · July 20262.30%
Based on $1,472,500 median
Gross Yield (Unit)
Source: data.sa.gov.au · July 202610.62%
Based on $274,320 median
Annual Growth (House)
Source: data.sa.gov.au · July 2026+24.3%
Year-on-year capital growth
Annual Growth (Unit)
Source: data.sa.gov.au · July 2026–
Year-on-year capital growth
Owner Occupancy
Source: ABS Census 2021 · May 202668%
Higher = more owner-occupier demand
Days on Market
Source: data.sa.gov.au · July 2026–
Lower = higher buyer demand
Gross rental yield is annual rent divided by purchase price, before expenses. It does not account for vacancy rates, management fees, maintenance, or financing costs. Use this as a starting point for further research.
5-year trajectory
at +24.3%/yr
2021
$496K
5-year change
+197%
2026
$1.5M
Trajectory derived from the current median compounded at the suburb’s annual growth rate, not raw sale-by-sale history.
Safety
Crime and safety.
146
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.
100
0
100
Scores calculated from OpenStreetMap data (ODbL)
Walkability data as of May 2026· OpenStreetMap
Place
Location.
Amenities
Transport
Education
Schools in Semaphore.
Local schools for Semaphore
View the catchment for each school to find out more.
Government School Catchment
Le Fevre High School
Le Fevre Peninsula Primary School
Westport 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.
- What is the median house price in Semaphore?
- The median house price in Semaphore, SA 5019 is $1,472,500. The median unit price is $274,320. Annual growth is +24.3%.
- What is the Semaphore postcode?
- Semaphore is in the 5019 postcode, in SA, in the City of Charles Sturt region.
- Where is Semaphore?
- Semaphore 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?
- The median weekly rent for houses is $650, for units it's $560.
- What schools are in Semaphore?
- There are 20 schools serving Semaphore on this page, including Dominican School, Le Fevre High School, Le Fevre Peninsula Primary School.
- How walkable is Semaphore?
- Semaphore has a Walk Score of 100 out of 100, very walkable. transit score 0, bike score 100.
- What suburbs are near Semaphore?
- Semaphore is close to Exeter, Glanville, Semaphore South, Ethelton, New Port.
- What is the population of Semaphore?
- The population of Semaphore is approximately 2,749 (2021 Census). The median age is 50.
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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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