Largs Bay - Semaphore

Largs Bay - Semaphore is a growing region in SA with 15,765 residents.

SA2 code: 404021099
State: SA

Population

15,765

Estimated 2025

5-Year Growth

+5.3%

3yr: +4.6% · 10yr: +5.7%

5-year growth

Median Rent

$320/wk

Census 2021

Median Income

$1,584/wk

Household, Census 2021

Population over time — Largs Bay - Semaphore (SA2)

Source: ABS ERP (latest release · 2025) · Census 2021. Numbers refreshed quarterly.

Growth at a Glance

3yr: +4.6%5yr: +5.3%10yr: +5.7%Total: +12.8%

Population grew from 13,971 to 15,765 over 24 years, averaging 0.5% per year.

Demand & supply signals

Derived signals haven't been computed for this region yet.

Roadmap signals

Two more derived metrics are defined in the platform and waiting on upstream-data orchestration. Each will populate here once its source series is wired through.

Affordability trend

Coming soon

RPPI year-on-year divided by WPI year-on-year. Above 1.0 means home prices are outpacing wages; below 1.0 means wages are catching up.

Awaiting: ABS RPPI (6432.0) + WPI (6345.0) GCCSA-grain orchestration.

Rent–price momentum spread

Coming soon

CPI rents year-on-year minus RPPI year-on-year. Positive means rents are gaining on prices; negative means prices are running ahead of rents.

Awaiting: ABS CPI rents component + RPPI orchestration.

Profile

Census snapshot

ABS · 2021

Housing

Public housing 4.6%

Predominantly detached houses (69.9%), mixed tenure (68.9% own or mortgage), built for families (49% are 3 bed).

Dwelling mix

Houses 69.9%

Townhouses 16.7%

4,431 houses1,058 townhouses846 apartments

Tenure

Owned 30.0%

Mortgage 38.9%

Renting 29.1%

Owned 30.0%Mortgage 38.9%Renting 29.1%Other / NS 2.1%

Number of bedrooms

1 bed

392 (6.2%)

2 bed

1,740 (27.7%)

3 bed

3,067 (48.8%)

4 bed

939 (15.0%)

5 bed

118 (1.9%)

6+ bed

24 (0.4%)