Seaton - Grange

Seaton - Grange is a growing suburb 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)

ABS publishes annual estimates only at SA2 level, not at suburb level.

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.

Profile

Census snapshot

ABS · 2021

Housing

Public housing 7.3%

Predominantly detached houses (64.7%), mixed tenure (68% own or mortgage), built for families (55% are 3 bed).

Dwelling mix

Houses 65%

Townhouses 24%

4,665 houses1,702 townhouses845 apartments

Tenure

Owned 36%

Mortgage 32%

Renting 33%

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%)

Seaton - Grange

Population over time — Seaton - Grange (SA2)

Growth at a Glance

Census snapshot

Housing

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Where this data comes from