Seaton - Grange

Seaton - Grange is a growing region in SA with 18,429 residents.

SA2 code: 404011095
State: SA

Population

18,429

Estimated 2025

5-Year Growth

+4.4%

3yr: +3.8% · 10yr: +10.4%

5-year growth

Median Rent

$320/wk

Census 2021

Median Income

$1,425/wk

Household, Census 2021

Population over time — Seaton - Grange (SA2)

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

Growth at a Glance

3yr: +3.8%5yr: +4.4%10yr: +10.4%Total: +20.5%

Population grew from 15,300 to 18,429 over 24 years, averaging 0.8% 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 7.3%

Predominantly detached houses (64.6%), mixed tenure (64.4% own or mortgage), built for families (55% are 3 bed).

Dwelling mix

Houses 64.6%

Townhouses 23.6%

4,665 houses1,702 townhouses852 apartments

Tenure

Owned 33.9%

Mortgage 30.5%

Renting 31.0%

Owned 33.9%Mortgage 30.5%Renting 31.0%Other / NS 4.6%

Number of bedrooms

1 bed

171 (2.4%)

2 bed

1,702 (23.8%)

3 bed

3,963 (55.4%)

4 bed

1,129 (15.8%)

5 bed

150 (2.1%)

6+ bed

33 (0.5%)