Suburb in Mackay

Keswick Island, QLD

Keswick Island had a population of 4 at the 2021 Census (−29.7% since 2016). Median age 33.1. Median weekly household income $575. Source: ABS Census 2021, via Censible. Census 2026 data arrives June 2027.

Keswick Island at a glance

What the 2021 Census says, compared with Queensland.

In Mackay - Isaac - Whitsunday

Between the 2016 and 2021 censuses, Keswick Island's population shrank by 29.7% to 4, slower than Queensland as a whole (+9.6%). With a median age of 33.1, it is younger than the QLD average (38.0). Children under 10 make up 0.0% of residents, and people aged 70 and over 0.0%.

46.2% of households rent, a larger share than the QLD average of 33.6%. 61.5% own their home outright. Almost every home is a house; flats and apartments are 0.0% of homes. The 2021 Census counted 1 households.

The median household earns $575 a week, below the QLD average of $1,675.

45.9% of residents were born overseas, more than the QLD average of 24.1%. 24.6% use a language other than English at home. 64.4% report no religion, higher than the QLD average (44.8%).

Key figures

2021 Census, Keswick Island beside QLD and Australia.

MeasureKeswick IslandQLDAustralia
Population4*5,156,13825,422,788
Growth since 2016−29.7%+9.6%+8.6%
Median age33.1*38.038.0
Households1*1,869,4629,275,217
Flats and apartments0.0%*12.5%14.3%
Renting46.2%*33.6%31.1%
Owned outright61.5%*29.5%31.4%
Median household income a week$575*$1,675$1,746
Median rent a week$950+*$365$375
Median mortgage repayment a month–$1,733$1,863
Born overseas45.9%*24.1%29.3%
Other language at home24.6%*14.1%23.6%
No religion64.4%*44.8%41.9%

Source: ABS Census 2021, via Censible. * estimated on 2026 boundaries. How the figures are built

Population and age

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

Population

−29.7% since 2016.

Population · each census
  1. 102011
  2. 52016
  3. 42021

Age

Median age 33.1, against 38.0 for Queensland.

Keswick Island Queensland
Share of people by age, Keswick Island and Queensland
0–90.0%
10–193.8%
20–2923.1%
30–3920.5%
40–4914.1%
50–595.1%
60–699.0%
70–790.0%
80+0.0%

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

Cultural background

The largest groups in Keswick Island at the 2021 Census.

Ancestry

Top 5 · ancestry
  1. English36.1%
  2. Australian24.6%
  3. Scottish14.8%
  4. Irish13.1%
  5. Italian11.5%

Languages at home

Top 5 · languages at home
  1. French8.2%
  2. Spanish8.2%
  3. Mandarin6.6%

Country of birth

Top 5 · country of birth
  1. New Zealand13.1%
  2. China8.2%

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

Around Keswick Island

The places it belongs to, sits beside and contains.

Explore Keswick Island in Censible

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