Suburb profile · ABS Census 2021
Mount Cotton suburb profile
Mount Cotton, QLD · Postcode 4165
This Mount Cotton suburb profile summarises official Australian Bureau of Statistics Census 2021 data for Mount Cotton, QLD (postcode 4165). Use it as a free suburb report covering population, median rent, household income, age, housing tenure and employment, plus how those figures changed since Census 2016— then compare Mount Cotton with nearby suburbs.
Mount Cotton at a glance
Population
7,302
Median rent
$475/wk
Household income
$2,640/wk
Median age
34
Mount Cotton trends (2016 → 2021)
Change since the previous Census. Historical figures are mapped from State Suburbs (SSC) to today's suburb boundaries.
Population
Census 2011 → 2016 → 2021
+52.6% over 10 years
Population
7,302
was 6,835 in 2016
+467 · +6.8%
Median rent
$475/wk
was $465/wk in 2016
+$10 · +2.2%
Household income
$2,640/wk
was $2,239/wk in 2016
+$401 · +17.9%
Median age
34
was 32 in 2016
+2 · +6.3%
Dig deeper: Mount Cotton population growth · Mount Cotton then and now
Mount Cotton vs nearby & Greater Brisbane
Median Census 2021 figures for Mount Cotton, nearby suburbs (8), and the Brisbane metro median (suburbs with 1,000+ people).
Rent
+13.1% vs area
- Mount Cotton$475/wk
- Nearby$450/wk
- Brisbane$420/wk
Household income
+31% vs area
- Mount Cotton$2,640/wk
- Nearby$2,051/wk
- Brisbane$2,015/wk
Median age
-8.1% vs area
- Mount Cotton34
- Nearby39
- Brisbane37
Personal income
+28.8% vs area
- Mount Cotton$1,114/wk
- Nearby$858/wk
- Brisbane$865/wk
Nearby uses the same postcode first, then larger suburbs in QLD. See Brisbane rankings.
Socio-economic profile
How Mount Cotton compares to other Australian suburbs on income, education and occupation — from official ABS SEIFA 2021 data.
Mount Cotton ranks among Australia's most advantaged suburbs. It shows strong access to economic resources.
Relative disadvantage (IRSD)
Decile 101,095.7
Lower score / decile = more relative disadvantage
Advantage & disadvantage (IRSAD)
Decile 101,073.8
Higher score / decile = more relative advantage
Economic resources (IER)
Decile 101,133.1
Access to economic resources (income, housing)
Education & occupation (IEO)
Decile 81,029.9
Education and occupational skill levels
Source: ABS SEIFA 2021. See methodology.
Mount Cotton on the map
OpenStreetMap outline for Mount Cotton, QLD.
Map data © OpenStreetMap contributors. Boundary matching is approximate.
Mount Cotton people
- Population
- 7,302
- Median age
- 34
- Born overseas
- 19.5%
- Average household size
- 3.1
Total usual residents (Census 2021)
Median age of residents in years
Percentage born outside Australia
Average number of people per household
Mount Cotton income
- Median household income
- $2,640/wk
- Median personal income
- $1,114/wk
Median total weekly household income
Median total weekly personal income
Mount Cotton housing
- Median rent
- $475/wk
- Median mortgage repayment
- $2,100/mo
- Separate houses
- 96.7%
- Flats & apartments
- 0.1%
- Owned outright
- 18.6%
- Mortgaged
- 64.4%
- Rented
- 13.3%
- Unoccupied dwellings
- 2.9%
Median weekly rent for rented dwellings
Median monthly mortgage repayment
Percentage of dwellings that are separate houses
Percentage of dwellings that are flats or apartments
Percentage of dwellings owned without a mortgage
Percentage of dwellings with a mortgage
Percentage of dwellings rented
Percentage of private dwellings unoccupied on Census night
Mount Cotton work
- Employment to population
- 76.2%
- Unemployment rate
- 2.6%
- Year 12 or above
- 67.6%
Employed persons as a percentage of population aged 15+
Unemployed persons as a percentage of the labour force
Percentage with Year 12 or equivalent as highest school level
Nearby suburb profiles (near 4165)
Compare Mount Cotton with nearby suburbs
Mount Cotton in numbers
Mount Cotton had 7,302 residents at the 2021 Census, making it the 217th most populous suburb or locality in QLD out of 3,110. The median age is 34, 15% below the typical QLD suburb. The average household has 3.1 people. 19.5% of residents were born overseas.
Among occupied homes, 18.6% own their home outright, 64.4% are paying a mortgage, 13.3% rent. Separate houses make up 96.7% of dwellings, with 0.1% in flats or apartments. Median rent was $475/wk, 36% above the typical QLD suburb.
Median household income was $2,640/wk, 56% above the typical QLD suburb. The unemployment rate on Census night was 2.6%. 67.6% of adults had completed Year 12 or above. On the ABS SEIFA index of relative socio-economic disadvantage it sits in decile 10 nationally (1 is most disadvantaged, 10 least).
Between the 2016 and 2021 Censuses the population grew 6.8% (from 6,835 to 7,302). Median rent moved from $465/wk to $475/wk (+2.2%).
Mount Cotton suburb FAQs
- What is the median rent in Mount Cotton, QLD?
- The median weekly rent in Mount Cotton was $475/wk at the 2021 Census (ABS).
- How many people live in Mount Cotton, QLD?
- Mount Cotton had 7,302 residents at the 2021 Census, up 6.8% from 2016.
- What is the median household income in Mount Cotton?
- Median household income in Mount Cotton was $2,640/wk at the 2021 Census.
- Do most people rent or own in Mount Cotton?
- 13.3% of occupied homes in Mount Cotton were rented, 18.6% were owned outright and 64.4% were owned with a mortgage.
About this Mount Cotton suburb profile
Figures are from the ABS Census of Population and Housing 2021 (General Community Profile) for the Suburbs and Localities boundary matching Mount Cotton. Where shown, 2016 values come from the 2016 State Suburbs (SSC) profile, linked via ABS geographic correspondence — boundaries are not always identical. Medians may be suppressed for very small areas. This is not financial or relocation advice — use it alongside current market data.
Source: ABS Census 2021. Methodology · Richest suburbs in Brisbane