Suburb in Cockburn

Treeby, WA

Treeby had a population of 4,214 at the 2021 Census (+348.3% since 2016). Median age 32.0. Median weekly household income $2,479. Source: ABS Census 2021, via Censible. Census 2026 data arrives June 2027.

Treeby at a glance

What the 2021 Census says, compared with Western Australia.

In Perth - South West

Between the 2016 and 2021 censuses, Treeby's population grew by 348.3% to 4,214, faster than Western Australia as a whole (+7.5%). With a median age of 32.0, it is younger than the WA average (38.0). Children under 10 make up 16.3% of residents, and people aged 70 and over 7.5%.

15.6% of households rent, a smaller share than the WA average of 27.7%. 15.6% own their home outright. Almost every home is a house; flats and apartments are 0.3% of homes. The 2021 Census counted 1,483 households.

The median household earns $2,479 a week, above the WA average of $1,815. Renters pay a median $450 a week, and households with a mortgage repay $2,000 a month.

46.8% of residents were born overseas, more than the WA average of 34.2%. 35.0% use a language other than English at home. 39.1% report no religion, lower than the WA average (46.7%).

Key figures

2021 Census, Treeby beside WA and Australia.

MeasureTreebyWAAustralia
Population4,2142,660,02625,422,788
Growth since 2016+348.3%+7.5%+8.6%
Median age32.038.038.0
Households1,483964,7349,275,217
Flats and apartments0.3%6.5%14.3%
Renting15.6%27.7%31.1%
Owned outright15.6%29.6%31.4%
Median household income a week$2,479$1,815$1,746
Median rent a week$450$340$375
Median mortgage repayment a month$2,000$1,842$1,863
Born overseas46.8%34.2%29.3%
Other language at home35.0%19.6%23.6%
No religion39.1%46.7%41.9%

Source: ABS Census 2021, via Censible. How the figures are built

Population and age

Each census since 2011, and the age profile in 2021.

Population

+348.3% since 2016.

Population · each census
  1. 6302011
  2. 9402016
  3. 4,2142021

Age

Median age 32.0, against 38.0 for Western Australia.

Treeby Western Australia
Share of people by age, Treeby and Western Australia
0–916.3%
10–197.7%
20–2917.6%
30–3927.6%
40–4910.6%
50–597.4%
60–695.7%
70–795.0%
80+2.5%

Source: ABS Census 2021, via Censible. How the figures are built

Cultural background

The largest groups in Treeby at the 2021 Census.

Ancestry

Top 5 · ancestry
  1. English29.2%
  2. Australian24.7%
  3. Chinese12.6%
  4. Indian8.8%
  5. Scottish6.2%

Languages at home

Top 5 · languages at home
  1. Mandarin5.9%
  2. Gujarati1.9%
  3. Cantonese1.7%
  4. Filipino1.7%
  5. Tagalog1.7%

Country of birth

Top 5 · country of birth
  1. India6.5%
  2. England5.6%
  3. Malaysia4.2%
  4. the Philippines4.2%
  5. Singapore2.6%

Source: ABS Census 2021, via Censible. How the figures are built

Around Treeby

The places it belongs to, sits beside and contains.

Explore Treeby in Censible

Every census figure for Treeby, mapped and compared with any other place. A free account takes a minute.