Thornlie

Thornlie is a growing suburb in WA with 25,963 residents.

SA2 code: 506041137
State: WA

Population

25,963

Estimated 2025

5-Year Growth

+6.4%

3yr: +5.1% · 10yr: +6.6%

5-year growth

Median Rent

$330/wk

Census 2021

Median Income

$1,571/wk

Household, Census 2021

Population over time — Thornlie (SA2)

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

Growth at a Glance

3yr: +5.1%5yr: +6.4%10yr: +6.6%Total: +9.2%

Population grew from 23,768 to 25,963 over 24 years, averaging 0.4% per year.

Profile

Census snapshot

ABS · 2021

Housing

Public housing 2.0%

Almost entirely detached houses (91.3%), owner-occupied (78%), built for families (46% are 4 bed).

Dwelling mix

Houses 91%

7,654 houses642 townhouses91 apartments

Tenure

Owned 34%

Mortgage 44%

Renting 22%

Number of bedrooms

1 bed

56 (0.7%)

2 bed

499 (6.0%)

3 bed

3,347 (40.4%)

4 bed

3,810 (46.0%)

5 bed

518 (6.3%)

6+ bed