Suburb in Northern Beaches

Duffys Forest, NSW

Duffys Forest had a population of 509 at the 2021 Census (+7.4% since 2016). Median age 43.0. Median weekly household income $4,250+. Source: ABS Census 2021, via Censible. Census 2026 data arrives June 2027.

Duffys Forest at a glance

What the 2021 Census says, compared with New South Wales.

In Sydney - Northern Beaches

Between the 2016 and 2021 censuses, Duffys Forest's population grew by 7.4% to 509, in step with New South Wales as a whole (+7.9%). With a median age of 43.0, it is older than the NSW average (38.4). Children under 10 make up 10.4% of residents, and people aged 70 and over 9.8%.

17.8% of households rent, a smaller share than the NSW average of 33.1%. 46.7% own their home outright. Almost every home is a house; flats and apartments are 0.0% of homes. The 2021 Census counted 152 households.

The median household earns $4,250+ a week, above the NSW average of $1,829. Renters pay a median $625 a week, and households with a mortgage repay $6,134+ a month.

27.0% of residents were born overseas, fewer than the NSW average of 31.0%. 10.8% use a language other than English at home. 45.1% report no religion, higher than the NSW average (35.7%).

Key figures

2021 Census, Duffys Forest beside NSW and Australia.

MeasureDuffys ForestNSWAustralia
Population5098,072,17125,422,828
Growth since 2016+7.4%+7.9%+8.6%
Median age43.038.438.2
Households1522,900,4569,275,123
Flats and apartments0.0%21.8%14.3%
Renting17.8%33.1%31.1%
Owned outright46.7%32.0%31.4%
Median household income a week$4,250+$1,829$1,747
Median rent a week$625$423$376
Median mortgage repayment a month$6,134+$2,142$1,866
Born overseas27.0%31.0%29.3%
Other language at home10.8%28.2%23.6%
No religion45.1%35.7%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

+7.4% since 2016.

Population · each census
  1. 4362011
  2. 4742016
  3. 5092021

Age

Median age 43.0, against 38.4 for New South Wales.

Duffys Forest New South Wales
Share of people by age, Duffys Forest and New South Wales
0–910.4%
10–1915.9%
20–2911.8%
30–396.3%
40–4913.8%
50–5917.5%
60–6912.6%
70–797.5%
80+2.4%

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

Cultural background

The largest groups in Duffys Forest at the 2021 Census.

Ancestry

Top 5 · ancestry
  1. English45.8%
  2. Australian30.4%
  3. Scottish14.7%
  4. Irish12.9%
  5. Italian8.9%

Languages at home

Top 5 · languages at home
  1. Mandarin3.5%
  2. Italian2.8%
  3. Arabic1.6%
  4. Vietnamese1.0%
  5. Afrikaans0.8%

Country of birth

Top 5 · country of birth
  1. England8.2%
  2. South Africa4.8%
  3. Italy2.6%
  4. New Zealand2.6%
  5. China2.4%

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

Around Duffys Forest

The places it belongs to, sits beside and contains.

Explore Duffys Forest in Censible

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