Suburb in Tweed

Round Mountain, NSW

Round Mountain had a population of 148 at the 2021 Census (+3.5% since 2016). Median age 50.0. Median weekly household income $1,375. Source: ABS Census 2021, via Censible. Census 2026 data arrives June 2027.

Round Mountain at a glance

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

In Richmond - Tweed

Between the 2016 and 2021 censuses, Round Mountain's population grew by 3.5% to 148, slower than New South Wales as a whole (+7.9%). With a median age of 50.0, it is older than the NSW average (39.0). Children under 10 make up 11.5% of residents, and people aged 70 and over 14.2%.

12.5% of households rent, a smaller share than the NSW average of 33.1%. 51.8% own their home outright. Almost every home is a house; flats and apartments are 0.0% of homes. The 2021 Census counted 56 households.

The median household earns $1,375 a week, below the NSW average of $1,829. Renters pay a median $338 a week, and households with a mortgage repay $2,167 a month.

13.6% of residents were born overseas, fewer than the NSW average of 31.0%. 0.0% use a language other than English at home. 43.4% report no religion, higher than the NSW average (35.7%).

Key figures

2021 Census, Round Mountain beside NSW and Australia.

MeasureRound MountainNSWAustralia
Population1488,072,16325,422,788
Growth since 2016+3.5%+7.9%+8.6%
Median age50.039.038.0
Households562,900,4689,275,217
Flats and apartments0.0%21.8%14.3%
Renting12.5%33.1%31.1%
Owned outright51.8%32.0%31.4%
Median household income a week$1,375$1,829$1,746
Median rent a week$338$420$375
Median mortgage repayment a month$2,167$2,167$1,863
Born overseas13.6%31.0%29.3%
Other language at home0.0%28.2%23.6%
No religion43.4%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

+3.5% since 2016.

Population · each census
  1. 1552011
  2. 1432016
  3. 1482021

Age

Median age 50.0, against 39.0 for New South Wales.

Round Mountain New South Wales
Share of people by age, Round Mountain and New South Wales
0–911.5%
10–1914.9%
20–292.7%
30–397.4%
40–4912.2%
50–5923.6%
60–6914.2%
70–798.8%
80+5.4%

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

Cultural background

The largest groups in Round Mountain at the 2021 Census.

Ancestry

Top 5 · ancestry
  1. English43.6%
  2. Australian39.3%
  3. Irish15.0%
  4. Scottish12.1%
  5. Italian6.4%

Languages at home

Country of birth

Top 5 · country of birth
  1. England4.9%
  2. New Zealand4.2%

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

Around Round Mountain

The places it belongs to, sits beside and contains.

Explore Round Mountain in Censible

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